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  1. Wavelength from collision
  2. wavelength
  3. debye einstein model
  4. Expectation Value of x
  5. Momentum in QM
  6. One basic question
  7. ZPE and Planck distribution
  8. Proving Hermitian if it has real eigenvalues
  9. [Q] Time uncertainty and particle energy similar to photon
  10. What to learn to link EM wave to photon picture?
  11. [Q]eigenfunction of position operator and negative energy
  12. DGLAP: Kollinear divergence in splitting functions?
  13. Wave Function Probability
  14. WKB-Double Potential Well
  15. where did the de Broglie waves go?
  16. Modifications to Einstein-Hilbert action
  17. [Q]Eigenfunction of inverse opreator and another question.
  18. [Q]Different interpretation of same wavefucntion.
  19. What is "vacuum polarization" and "vacuum de-polarization"?
  20. Anthony Zee's quote
  21. [Q]Expression of Group velocity in QM
  22. position measuring device
  23. Quantum theory of lasers
  24. help...photoelectrc effect
  25. non Hermitian Hamiltonian!
  26. Some quick QM questions
  27. quantum mechanics and the speed of light
  28. Mass term in field theory
  29. Questions about quantum field theory
  30. Time travel
  31. Lectures of quantum mechanics?
  32. Help about the symbols
  33. divergences in the sense of QFT
  34. Vector currents, vector fields and bosons
  35. Operators having Hermitian/Antihermitian part?
  36. Quantum logic gate measurement?
  37. [Q]Time deviation of expectation value
  38. Antiparticle annihilation
  39. quantum state: how many bases?
  40. Discrete energy states (explanations in QFT?)
  41. Formalism and Angular Momentum Expectation Values
  42. [Q]Conserative theorem and parity
  43. [Q] parity question.
  44. Why tensor opeator?
  45. [Q]Question about harmonic oscilator
  46. Quantum computation
  47. Tensor and matrices
  48. how do we define a wave function?
  49. Particles being in more than one place at once.
  50. Eigen functions & eigen vectors
  51. How to measure J^2?
  52. Coherent States of the Quantum Harmonic Oscillator
  53. Normalization and singularities
  54. What are the normalizations constants of psi(x) in a finite potential box?
  55. Anti-tunneling?
  56. The Lorentz force derived from the Klein Gordon equation
  57. composite bosons
  58. spinor representation
  59. Negative energy solutions - Dirac equation
  60. inconsistancy in QM?
  61. how can get the eigenvalues of the two spin entangle
  62. [Q] Sign of wavefunction in PIB
  63. What happens during a change in orbital state?
  64. testing
  65. Where can I find detailed description of cononical quantization?
  66. QFT overview
  67. [Q]Three Question.
  68. Question on electron orbitals and wavelengths??
  69. Trapped Electrons
  70. photons and gases (pressure and gravity)
  71. Uncertainty Principle at T=0
  72. The propagator
  73. Virial Theorem
  74. QM beginner's question about deltafunction potential problem
  75. Complex conjugate of wave function
  76. [Q]Hamiltonian of many body problem.
  77. virtual particles
  78. What is a bilateral binary rotation?
  79. Particle oscillating between two wells
  80. Probability Interpretation of QM
  81. Unitary transformation
  82. how useful would a metric independant basis be?
  83. Cavitation-does it relate to the Big Bang?
  84. Zero probability
  85. Hydrogen Atom Wavefunction Boundary conditions
  86. Double slit experiment: counter?
  87. photons
  88. Energy level calculation
  89. Light emission/absorption revisited by chemical thermodynamics
  90. Completeness of the Number States
  91. Planck Scale and Unification of Forces- new research studies
  92. quantum angular momentum
  93. Is EVERTHING entangled?
  94. Does collapse violate exchange symmetry?
  95. Why 1D well must has this solution?
  96. Interpretation of probability which includes complex number!
  97. Refraction - The lingering question
  98. Infinite potential barrier Q
  99. Summing spinor products
  100. Basic Quantum Transport Question
  101. Many World's Interpretation
  102. Could positrons be electrons from the future traveling back in time?
  103. Doppler shift
  104. Classical vs Quantum Electromagetism
  105. Are Hilbert spaces uniquely defined for a given system?
  106. Born vs. ABL
  107. de broblie waves
  108. photon mass??
  109. High momentum transfer, short distances
  110. Diffraction
  111. Wouldn't the Geiger Counter be considered a measuring device in SC?
  112. Please help me understand the basics!
  113. Do spontaneous and stimulated emission obey to a Boltzmann's statistics ?
  114. No coupling of Photons with eletric fields
  115. Delayed Choice Revisited
  116. photon generation
  117. A spinor identity
  118. laser beam uncertainty
  119. Wigner-Eckart
  120. Quantum Eraser and Delayed Choice Quantum Eraser
  121. Size does matter? Rayleigh scattering question
  122. Inquisitive
  123. Conservation of momentum in QFT
  124. Angular Momentum - Hydrogen (Quick Question)
  125. Relativistic quantum field theory:antiparticles!
  126. How did Planck come up with 'h'?
  127. Source material on how Planck came up with h
  128. Absorption paradox?
  129. peskin - exponention of disconnected diagrams
  130. Bird's and Frog's view, Quantum decoherence and consciousness
  131. Interference pattern given many which-path detectors?
  132. Need a topic for paper in modern physics
  133. Quantum effects x classical simulation
  134. Question about quantization of scalar field
  135. Looking for Layman's Physical Explanation for energy level in atoms
  136. Quantum Decoherence - how fast does it propagate?
  137. stationary state?
  138. Exclusion principle question.
  139. Uncertainty Principle
  140. Aharonov-Bohm effect
  141. quantum field theory
  142. Laser Cavity
  143. Factorization of Numbers, Schrödinger Cats, Riemann Hypothesis
  144. Phase shift upon external reflection
  145. the Merli "Electron Interference" movie .. any active links ? ..
  146. Effects of the Variation of the Parameters of the Standard Model
  147. QM Misconceptions
  148. commutate relation of lowering operator and sperical tensor operators
  149. Quantum Communication
  150. QM in one sentence
  151. "older formulation of Pauli exclusion principle"
  152. Hartree product
  153. Are electrons particles?
  154. the intense laser-atom physics and ionized electron
  155. conjugate variables
  156. Pulsing a diode laser with very long pulses and very low repetition rates
  157. Question about the delta function
  158. How do you determine that a particle is/was entangled?
  159. identical particles
  160. Basics of Quantum Chemistry, especially entanglement
  161. Ket help
  162. adjoint operator
  163. Spin rotaion
  164. operating on spin angular momenta
  165. Uncertainty and gravity
  166. spin in arbritary direction
  167. Does the calculated large cosmological constant in falsify QFT?
  168. Heisenberg's principle
  169. Path Integral doubt
  170. Raising and lowering operators on a ket?
  171. Looking for Layman's Physical Explanation for the lowest energy level in atoms
  172. reviewing a possible wrong result of QUANTUM MECHANICS text by Cohen-Tannoudji
  173. Orders of magnutide in Heisenberg's uncertainty principle
  174. Adiabatic Spin Manipulation in EPR Experiment
  175. Evaluating Feynman diagram in QFT without external fermion lines
  176. Quantifying Negative Energy from Entropy
  177. compton effect
  178. gauge invariance
  179. Reflection and the measurement, and time irreversibility
  180. please help
  181. bra of product state
  182. Pauli's Wave Mechanics text. h vs. hbar
  183. Raising and lowering operators acting on spin 1 kets?
  184. Quantized vs. Continuous Variables
  185. Identical bosons vs. fermions in square potential well
  186. Density of state
  187. About momentum operator in other coordinate system
  188. The Hilbert space of non-relativistic QM
  189. Quantum Fluctuations of Negative Energy
  190. fractals and quantum physics
  191. Quantum physics vs classical physics
  192. Stern-Gerlach Question
  193. What energy do electrons actually take in an orbital?
  194. A simple question about uncertainty principle
  195. about Compton scattering
  196. Fundamental reason behind Aufbau principle
  197. Tunneling?
  198. Gravitons - magnitude of force
  199. Sudden Approximation and Adiabatic theorem
  200. bound state
  201. The brain and "dark energy"?
  202. Phonons _ Guage Bosons
  203. Does local MWT require hidden variables?
  204. IV curve on photoelectric effect
  205. Treating operators with continuous spectra as if they had actual eigenvectors?
  206. FTL communication: might QM entanglement "trump" relativity?
  207. Hamiltonian matrix problem
  208. heuristic explanation of why quantum mechanics plus SR imply antiparticles
  209. Negative energy in Dirac theory
  210. Entanglement between particles of no common history
  211. Another Stern-Gerlach Question
  212. State of an electron, including spin
  213. Interaction picture (Is there a mistake in QFT books?)
  214. Interference seen in a member of an entangled pair
  215. Electrons jumping
  216. Planck's Constant Related to Velocity of Light?
  217. Waveguide model of qm
  218. what is wave packet
  219. About ground state
  220. Euclideanizing Path Integrals
  221. QED: reflection of light in glass
  222. What's actually happening in the photovoltaic effect
  223. Ground state wavefunction
  224. question about time and space
  225. quantum equation symbols
  226. spin matrix
  227. Reduction of QED to QM
  228. How is entropy defined by boundary area in Holographic Principle?
  229. A single photon traveling in space
  230. Wave function and orbital question
  231. Phase and signal velocity of light inside a medium
  232. Two Basic Blackbody Radiation quesions
  233. Hartree & Hartree-Fock
  234. Quantum states as L^2 functions
  235. Reasons for phtonic radiation???
  236. Casimir effect and insulators
  237. Term Symbols
  238. understanding of double silts experiment
  239. Symmetric/Antisymmetric states in nature?
  240. Molecular Term Symbols
  241. Hartree-Fock Method vs. Configuration Interaction
  242. spacetime states in Rovelli's book "Quantum Gravity"
  243. How does light show particle properties?
  244. Question about the Scharnhorst effect
  245. Quatisized Magnetic Fields?
  246. Pauli's Exclusion principle...
  247. Reasons for natural occuring forces
  248. Two Slit Experiment Setup and Variables
  249. Quantum leap
  250. Size of a photon's electromagnetic field
  251. Casimir Effect - min. distance between plates
  252. Electromagnetic force
  253. Is Teleportation Mathematically or Theroretically Possible
  254. The Schrodinger equation
  255. probability of a wave function
  256. How do we know atoms exist?
  257. Is a proton's movement considered a subject of Quantum Mechanics?
  258. Anti-Particles
  259. BAC - CAB for operators?
  260. Local U(1) Guage-Invariance
  261. How can a atom generate photons ?
  262. Boson and leptons
  263. Construction of a Hilbert space and operators on it
  264. Entanglement Question
  265. Oscillation in Charged Particles
  266. Ghosts and the Many Worlds
  267. Hidden Variables
  268. Quasi-continuum?
  269. Can anyone explain the physical meaning of "spin" in QM?
  270. Standard deviation for a determinate state of observable Q
  271. Particle confusion
  272. Trouble with QM's theory on Bell's discovery
  273. what does off-diagonal term mean?
  274. quantum model of the atom
  275. Basic-Questions about Quantum terms
  276. Vertex operator algebra structure of Virasoro module L(1/2,1/2)
  277. Vertex operator algebra structure of Virasoro module L(1/2,1/2)
  278. Double Slit Experiment
  279. uncertainty principle
  280. Wavefunction of independent free electron gas at finite temperature
  281. Bell Theorem
  282. classical spin of an electron?
  283. How can something be massless?
  284. Wave-particle duality and electromagnetic waves
  285. moment of inertia tensor of an electron?
  286. Functional integration
  287. why does strong magnetic field destroy spherical symmetry of atom?
  288. electron - nucleus collision
  289. Zero-point energy for Zeroes
  290. Proof of Heisenberg formula
  291. Status of deBroglie-Bohm pilot wave theory
  292. wave function and spatial phase factor
  293. Do atoms 'create' photons?
  294. Exploding Black Holes vs. Universal Singularity
  295. delayed choice quantum eraser experiment in terms of MWI and/or BI
  296. Motion and growth
  297. Frequency of Rest Energy ?
  298. forces in QM
  299. (global) Gauge invariance and field theory
  300. Energy becoming mass? Wilczek question
  301. Heisenberg's uncertainty principle
  302. Problem with Entanglement
  303. Electron crash into Proton
  304. quantum entanglement and information
  305. Probability Waves
  306. Spectral theory in quantum mechanics
  307. addition of angular momenta
  308. Alpha Radiation
  309. Incandescence and energy bands
  310. Basic QED Question
  311. What contradictions remain between SR and QM?
  312. Does the Bohm interp. rely on the Leggett-Garg inequality?
  313. Hamiltonian for non-conservative forces?
  314. Partial Trace For Tripartite Systems
  315. connection between isolated eigenvalues and normalizable eigenstates
  316. Question: Protons and Neutrons Popping into and out of existance
  317. A way aroung determining which-paths in interference patterns?
  318. wave function/potential
  319. Universal Quantum Terms
  320. Renormalization
  321. Configuration space vs physical space
  322. Units of radial wavefunction
  323. Space and particles
  324. Question about naive questions
  325. Quatum Fields, Strings, and Parallel Universe
  326. Lundeen Steinberg claim to resolve Hardy paradox
  327. Basic treatment of the hydrogen atom through wave mechanics.
  328. quantum physics question
  329. Are the electrons in TV set wave or particle?
  330. Basis set orthonormality property
  331. Mulliken Population Analysis
  332. Please explain what this bra-ket expression means
  333. inner product of signals (or wavefunction)
  334. Time ordered products
  335. Experimental evidence for Hydrogen Wave Function?
  336. There's only one electron
  337. Quantization of the nucleus
  338. Potential Energy Surface in chemical reaction computations
  339. Question about Lagrangian
  340. Feynman rules for vector bosons
  341. eigenvalue of momentum for particle in a box
  342. Feynman diagrams
  343. Fields
  344. EM radiation cross over materials
  345. Photon reflexion
  346. negative energy/imaginary momentum
  347. Zero point energy of hydrogen atom
  348. spherical symmetry implies zero angular momentum?
  349. The collapse of one wave function is the creation of another
  350. charge cloud/mass cloud
  351. Probability
  352. Quantum superpositions of mixed states.
  353. Klein-Gordon linear potential solution
  354. Momentum in QM
  355. The surprisingly simple linear potential solution
  356. Simple double slit question
  357. Binding Energy question
  358. How is cosine squared used?
  359. Absorption/Emission of photons of specific frequency (Doppler Effect)
  360. rayleigh scattering vs raman scattering
  361. Please explain this Formalism in Linear Reponse Theory.
  362. Probability Distribution for Time of Measurement?
  363. Photon with spin 1. But it only has two projection along z. Why?
  364. LHC and probability waves
  365. West versus East
  366. degenerate time indep. perturbation theory
  367. Quantum Mechanical Scattering (3D) -- What about forward scattering?
  368. Mixed Vs Pure States
  369. quantum computation
  370. Rest mass, electron movement
  371. Quantum Erasure
  372. Bloch's theorem and diagonalization of translation operator
  373. Why need *complex* wavefunction?
  374. Delayed Choice Quantum Erasers
  375. How to deal with index in the problem of thermal field?
  376. outer product problem of derac notation
  377. Aharonov bohm effect
  378. req: A conceptual QFT example
  379. Angular frequency of a matter patter
  380. Photoelectric Effect - Electrons
  381. Another annoying double slit question
  382. Compton scattering
  383. Neutron imaging
  384. why does the system has lower energy if its wave function is symmetric?
  385. Hydrogen atom ground state with zero orbital angular moment question.
  386. Proposition for an experiment
  387. Wavelength and resolution
  388. what is physical significance of g factor?
  389. WaveFunction
  390. force carrier particles
  391. Matrix representing projection operators
  392. 2-slit experiment for electron
  393. Experiment involving photoelectric effect
  394. Entanglement and Time
  395. Is a photon's wavelength relative to the velocity of its source?
  396. Basic atomic picture clarification
  397. Forced Harmonic Oscillator with Path Integral
  398. maggiore p.52
  399. shift in angular momentum axis
  400. About distinguishable and indistinguishable
  401. Speculations of an amateur.
  402. use of trace of an operator?
  403. inverse of a delta function.
  404. Discussions Regarding "Quantum Theory", by David Bohm
  405. schrodinger's equation
  406. Partial Measurement / Teleportation
  407. magnetic flux quanta in ground state hydrogen
  408. electron smear
  409. Matter
  410. Shrodinger Equation, where did it come from?
  411. Quality value of an oscillating electron
  412. Path integral question
  413. ehrenfest theorem and Heisenberg quantum mechanics
  414. Total Randomness or Not?
  415. Von Neumann machine for the Universe
  416. Prediction?
  417. Trouble with some terms.
  418. Angular Distribution
  419. Measuring Momentum in QM
  420. Space and single objects.
  421. Eliminating the coincidence counter
  422. Rotation in hilbert space?
  423. Quantum Mechanical Weirdness
  424. quantum delay
  425. exact propagator
  426. Degeneracy of a quantum state
  427. How to include contraction symbols in LaTeX
  428. creation operator
  429. Need Help (not Homework question)
  430. SU(2) index convention
  431. zero mean value operator
  432. complex momentum density
  433. Wave-packet spreading...
  434. Electron tunneling and classic electrdynamics.
  435. Natural units!
  436. conductive materials question
  437. Proof of something.....
  438. Old Quantum Theory = Oscillations?
  439. Peculiar feature of a commutator, can anyone explain?
  440. What is the role of proper time in quantum theory
  441. Inner product on boson one-particle space
  442. Dirac-Feynman-action principle and pseudo-differential operators
  443. Probability Amplitude and Time Evolution Operator
  444. Recreating Thomas Young's Double Slit Experiment
  445. Entanglement problem
  446. Klein gordan equation in electromagnetic potential
  447. Confusion About Light
  448. Energy of Electrostatic Charge ?
  449. FAQ says refraction isn’t from absorption and emission
  450. MS renormalization
  451. Fermion & Boson discovery experiment?
  452. Integrals in the derivation of the Optical Theorem
  453. Harmonic oscillator in a time-dependent force
  454. Factor of 'i' and antisymmetrization in Dirac Lagrangian
  455. Meaning of zero probability density
  456. Photons vs EM waves
  457. Questions about the Double Slit Experiment
  458. Stern-Gerlach experiment
  459. How to create charge from light?
  460. accelerated electron photon emission
  461. QFT question about algebra of charges
  462. Amplitude for a free particle
  463. Hermite polynomial and transformation
  464. game theory and quantum game theory
  465. Bohm Interpretation and Bell Theorem
  466. what is an effective field theory
  467. About bases of complex (Hilbert) space
  468. Beginner, wondering about wave functions
  469. determinant of operator
  470. Question about angular momentum and spin
  471. Gravitational 2-slit interference
  472. Baker-Campbell-Hausdorff formula question
  473. The Line That Seperates QM and Relativity?
  474. Projecting onto an eigenstate when we make a measurement
  475. about symmetry
  476. Free Particle
  477. what is semi-classical level counting?
  478. If particles always decay into particles of smaller mass, how are larger particles...
  479. Quantum Well Transistors
  480. entanglement criterion for identical particle
  481. Trying to be clear on EPR....
  482. simple uncertainty question
  483. non-Hermitian Hamiltonians
  484. solving using schrodinger equation techniques
  485. What is wavefunction
  486. grand unified theories and quantum mechanics
  487. degeneracy
  488. What happen to a single photon entering a PBS.
  489. Double Slit Experiment and Electron Spin
  490. Schrodinger Equation
  491. Entanglement as a resource
  492. electron collision
  493. Some quantum dynamics simulations
  494. Momentum operator for a free particle with a definite momentum and Energy
  495. Light (wave and particle theory)
  496. Double Slit experiment
  497. Gedankenexperiment on quantum entanglement
  498. Gaussian Integral Identity with Grassmann Numbers
  499. Hardy's paradox
  500. energyeigenvalue....
  501. Distinguishing between eigenstates
  502. Orbital Angular Momentum and Uncertainty?
  503. Schrodinger's cat questions
  504. symmetric kinetic energy
  505. Zero-frequency modes
  506. Proof of Gelfand-Maurin Nuclear Spectral Theorem?
  507. bootstrap idea holding up?
  508. sum of two slater determinants
  509. Yukawa Potential
  510. Random definition
  511. polarization of light
  512. Frequency of an electron
  513. Schroedinger eq. for a charged particle in a magnetic field - translation operators
  514. How can a point particle spin?
  515. Determining wether consciousness is required in the double-slit experiment
  516. Does anyone know about Quantum Computing?
  517. longitudinal Zeeman effect
  518. eigenstate
  519. classification of schrodinger equation?
  520. Deriving the Dirac equation from an action principle
  521. a photon's speed
  522. Diffraction limited spot
  523. What is principal value integral?
  524. lowest-order correction for the bendulum
  525. Generating Functional for Yukawa Interactions
  526. General Modern Physics questions
  527. Hogg's Search Algorithm - QC
  528. Peskin Schröder Chapter 7.1 Field Strength Renormalization
  529. Discrete energy level of schrodinger's equation
  530. Bound states in relativistic quantum mechanics
  531. classical or quantum spinor
  532. Optical polarization conversion
  533. Energy & Time, Momentum & Position
  534. solutions to the TISE for "unbound states"
  535. Grover's Algorithm: is it really a search algorithm
  536. Finding the Mystery gas questions
  537. phase in quantum mechanics
  538. unitary transforms
  539. figuring out the frequency of light using a solar cell
  540. Probability of simultaneous measurements of momentum and position
  541. Dirac Equation for a moving square potential well
  542. Recombination lines
  543. Number of vibrations in a photon
  544. Effect of the raising operator on an l=1 m=1 state
  545. Integration on the way to Generating Functional for the free Dirac Field
  546. The Neutron
  547. Empty waves in Bohm theory
  548. Quantum Frequencies?
  549. Quantum Effects in Biology.
  550. quantum physics
  551. Measurement/observation in QM...
  552. Schrodinger equation from commuation relations
  553. Maser Frequency
  554. LaTeX code for Quantum
  555. Prove zero point energy without calculation?
  556. Heisenberg uncertainty - uncertainty about its meaning
  557. zero momentum distribution and consequences on uncertainty principle
  558. when s-wave scattering length diverges
  559. Experiment -> QM postulates
  560. Quantum and Consciousness
  561. why do particles act like waves
  562. field constituents
  563. Light Wavelength increases over a distance
  564. Fourier Transform
  565. Force Carriers - How do they work?
  566. How does Classical Determinism Result from QM?
  567. What is entanglement?
  568. Quaternions in QM
  569. classical limit of the path integral
  570. ab initio structure constant
  571. Paradox Regarding Hermiticity
  572. Matrix mechanics
  573. spin matrix
  574. quantum collapse
  575. Spinor index notation craziness
  576. C-not
  577. Gaseous system: Meaning of this integral eq.
  578. Speciality of position momentum representation
  579. Advice needed for science project.
  580. Operator Equation
  581. question about number operator and density operator
  582. Why Gaussian wave packet?
  583. proof of de broglie equation?
  584. Light in electrostatic potential
  585. chaso: Hydrogen atom in a microwave field?
  586. Consequences of Hardy's paradox and joint weak measurement
  587. How to compute Hydrogen Inner Products <n,l+1,m+1|n,l-1,m+1>?
  588. double slit photon deflection
  589. spin
  590. Quantum Teleportation and Fusion
  591. Choose out the spectrum
  592. Eigenstates
  593. Renormalization of phi^4 Theory d dimensional Integral, Derivation in Peskin Schröder
  594. What is the operational difference between a quantum field and projection operators?
  595. water induced decoherence
  596. Basic question about entanglement
  597. Quantum Computors
  598. Bell’s inequality
  599. Does entanglement violate special relativity?
  600. A question about <p>
  601. Is this a valid example of macroscopic quantum behavior?
  602. Spin Selection Rule
  603. Radioactive decay and relativity
  604. Applications of Schrodingers Equation
  605. quantizing fields
  606. Meaning Behind Probability Amplitude
  607. Casimir effect vs vdW forces
  608. Something to do with space being time 0.o
  609. Particle Superposition
  610. Ehrenfest's Theorem
  611. The effect of wavefunction collapse on spacetime?
  612. Bound states and Current density
  613. How Many Parallel Worlds Are There?
  614. group theory
  615. Time ind. S.E., qualitative solution
  616. What is "virtual energy level"?
  617. numerially integrate the radial schrodinger equation
  618. Quantum Contact Conductance
  619. quantum eraser experiment
  620. Gravity across Multiple Dimensions
  621. Change in energy equation
  622. Fermions and parity
  623. David Bohm's Lens-defined model of brain function
  624. How to calculate density of states without box?
  625. Question about Renormalization Group Equation
  626. Symmetry Breaking
  627. Ground state of a potential
  628. Linear Superposition of Hamiltonians
  629. de Broglie Wavelength Derivation
  630. Lengendre Polynomials of cos(theta)
  631. Thought Experiment Involving Quantum Entanglement
  632. Derivative Terms of Effective Action
  633. Exponent of disconnected feynman diagrams
  634. Help wanted in understanding many worlds theory
  635. MWI, decoherence, and interference
  636. attraction and repulsion of e- and p+
  637. Planck length to mass ratio
  638. Alternative Feynman Diagram Calculation of Axial Anomaly
  639. partial quantum / partial classical?
  640. Nothing-Something
  641. complex scalar field
  642. What is the Triplet state
  643. The role of false info in the Copenhagen Int.
  644. Effect of changes in Stern-Gerlach fields
  645. Spinors and spatial coordinates
  646. QM vs SR
  647. QED photon field
  648. question about planck charge
  649. Double-Slit Wave Equation?
  650. Schrodinger Equation for a central 2D potential
  651. Entanglement: I am confused as to what actually happens in this process
  652. Quantum fields spacetime
  653. Schrodinger Equation and wavefunction collapse
  654. How fundamental is inverse square law?
  655. forces unified at the time of the big bang
  656. answer to einsteins paradox
  657. How to picture atomic/electron orbitals
  658. Feshbach resonance
  659. The many worlds theory
  660. Time-varying expectation values
  661. When can the time-independent Schrodinger be used?
  662. What do these states mean physically?
  663. Bohmian interpretaion and the special relativity
  664. Double slit and quater wave plates
  665. How "Real" Are Virtual Particles?
  666. two slits, one photon
  667. Particle Distingiushability
  668. Discrete Analog of Schrodinger Equation?
  669. Su(2)
  670. spherical shell
  671. Results and Observer
  672. Quantum brain
  673. How does Many Worlds theory explain Schroedinger's cat
  674. [Q]Queation about Photon and Electric discharge.
  675. Photons and Double Slit Experiment
  676. Triplet state question
  677. Clebsch-Gordan Theorem??
  678. calculate energy level spectra?
  679. question about lorentz-covariance of Dirac equation
  680. Branch-cut singularity and the multiparticle contribution to the full propagator
  681. Let us assume Feynman was wrong.
  682. Was Bohr's version of quantum mechanics deeply flawed
  683. One particle at a time
  684. What’s Dispersion got to do with Schroedinger?
  685. thought I had on the nature of randomness.
  686. Anomoly in calculations/standard value for electron energy levels
  687. Is it possible to derive HUP from SE?
  688. how would one collapse a molecular wavefunction?
  689. First order self-consistent Born approximation?
  690. A puzzle of symmetries in QM
  691. Massive and massless modes of the anchored string.
  692. Electron-electron scattering
  693. A question about solving the energy eigenvalue of a given Hamiltonian operator
  694. reps of lorentz group and pauli and gamma matrices
  695. emission line width and the uncertainty principle
  696. What happens when electrons crash into their proton
  697. He+1 energy level.
  698. Fractals and quantum physics
  699. Unbounded operators in non-relativistic QM of one spin-0 particle
  700. How do "deterministic" Bohmian/Pilot Wave Theories Handle These?
  701. Question on entanglement
  702. When is a hamiltonian separable and when isnt it?
  703. quantum Orbitals in the atom...
  704. Electron speeds in orbitals
  705. Question about Hydrogen Atom Solution
  706. Connection Formulas in the WKB approximation
  707. Does the existence of an infinite number of universes allow for reincarnation to exis
  708. Su(2)
  709. A lttile though on multiverses.
  710. help me
  711. Defense of pilot wave theory against Motl
  712. Finding averages of observables of Bell states
  713. particles traveling backwards in time
  714. Pure spin current vs. spin-polarized charge current?
  715. question about double slit experiment
  716. h=1
  717. the universe
  718. Past Uncertainty
  719. Just a quick question about some basic terms in QM
  720. Showing that wave functions are continuous
  721. Instantons
  722. CP maps
  723. Bloch sphere
  724. The duble slit expriment
  725. chapter 20. Peskin
  726. It's impossible !.
  727. Question about wave forms
  728. Creating : one frame at a time
  729. light-cone gauge quantisation of point particle
  730. Degenerate basis, incomplete set of operators
  731. Lets light Something on Fire
  732. Quantum entanglement
  733. Perplexing commutator
  734. fair dice and two slit experiment
  735. Helium energy diagram
  736. inverse spectral problem in QM
  737. Why Bohr's model was wrong
  738. Aharonov–Bohm Effect, Experiments, Applications, etc
  739. IR and UV divergences
  740. Switching to a Matrix Hamiltonian -- Conceptual Issues
  741. What is hidden subgroup in QC?
  742. Matter + Antimatter Bound State Mathematics
  743. HUP: Particles <=> ?
  744. Fictional novel about quantum physics - looking for title
  745. The Bohr's radius
  746. Raman Spectroscopy
  747. Bohm Interpretation
  748. Uncertainty with Hesienberg’s Uncertainty
  749. Proof of correctness of MWI
  750. Observation and Gravity
  751. NMR operators
  752. Noncommutative integral?
  753. QCD lambda parameter
  754. superposition/electron energy levels
  755. what does it mean that two particles have opposite spins?
  756. Stochastic resonance and tunneling
  757. Time evolution of state
  758. Do virtual photons Doppler-shift?
  759. Spin = -1/2
  760. SF-Mott insulator transition and Wigner-mermin theorem
  761. Against "realism"
  762. From QED to Maxwell
  763. i need help locating quantum entanglement experiments
  764. question about spacetime quantization
  765. Modern physics
  766. Laser question (Confinement factor and quantum well thickness)
  767. Transactional Interpretation and Expanding Universe
  768. EM Field strength and plane waves
  769. Bohmian Interpretation: Equivalent or not to Standard QM
  770. Why No Decoherence?
  771. Wave propagation, +z or -z
  772. Velocity, density, ect. : air : molecules :: spinor field :?:?
  773. 3-d harmonic oscillator and SU(3) - how to imagine it?
  774. determinism from periodic dynamics?
  775. Quantum Physics ?
  776. Interpretation of the field operator
  777. QM 1st order perturbation theory
  778. Drawbacks of bohr's model of atom
  779. Zero Spin?
  780. Energy Conservation in an expanded 1D box
  781. Does quantum mechanical definition of momentum require "movement"?
  782. Feynman rules of non-linear Sigma model
  783. dirac's Coupling to an electromagnetic field and schroedingers
  784. Choice of source photon production in entanglement experiments
  785. Question about Hartree Approx
  786. What exactly is an oscillator in quantum physical context?
  787. Explaining quantum coherence to a layman...
  788. U(1):?:SU(3) :: 1D:2D:3D harmonic oscillator.
  789. classical counterpart of the quantum |nlm> states
  790. Defined pattern of a photon?
  791. Postulates of many worlds interpretation of QM
  792. Hydrogen spectrum hyperfine structure
  793. Many worlds / parallel universes & improbable events
  794. dot product of two pauli matrices
  795. Time Dependent Schrodinger Equation -> T(t) solution
  796. quantum-classical correspondence?
  797. Introductory books on quantum mechanics
  798. Question about Braket notation
  799. errata for Bohm's Quantum Theory text
  800. symmetries in qft
  801. Quantum Walks on the Hypercube
  802. Spin 3/2
  803. The smallest measurement device
  804. Effective potential and Uehling potential
  805. U(1):SU(2):SU(3):? :: 1D:2D:3D:4D harmonic oscillator?
  806. a surprising operator
  807. Bound state condition for yukawa
  808. Does polarization of the light change after reflecting from layer structure?
  809. Harmonic Oscillator energy = WKB approximate energy...why?
  810. why do high energies correspond to small distances
  811. Why do molecules not fall apart under observation?
  812. Questions from a Newbie
  813. zeman effect
  814. About ladder operator
  815. Inelastic collisions
  816. about dirac equation
  817. Time
  818. Second quantization and partial traces
  819. Infinite Square Well
  820. SU(2) Spinor Question
  821. Systems with global phase invariance, 3D string?
  822. laser question (auger recombination)
  823. why would entangled particles light years away need to be able to cancel?
  824. Why is gold golden in colour?
  825. Frequency operators
  826. Multi-electron wavefunctions
  827. Tunneling effect in Supercapacitors ???
  828. Simple question about anticommuting numbers
  829. Schrodinger Equations - wave propagation
  830. Formulation of Quantum Mechanics?
  831. What is the difference between quantum mechanics and quantum physics?
  832. stationary schrodinger equation (basic problems regarding the basis being used)
  833. Double Slit Experiment Near The Singularity of a black hole
  834. Why of probability in QM
  835. practical examples of superposition?
  836. root of number operator?
  837. Expectation Velues
  838. Quantum Field Time Space,
  839. why doesn't the electron fall into the nucleus!?
  840. Could almost nothing really be something? Fourier series.
  841. Dimensions of fields in QFT
  842. How to operate on product state?
  843. Density Matrix in that DFT bible book
  844. Free choice experiments in MWI?
  845. QM Phase & Four-Vectors
  846. How come there is a particle with zero mass??
  847. Superconductivity
  848. Ballentine 3.11
  849. Property that gives electrons charge.
  850. Suppose there is an extra compact dimension, and suppose...
  851. fermi-Dirac Distribution
  852. Fermi Energy
  853. Reflection
  854. Virtual Particles
  855. Quantum Tunneling in a Scanning Tunneling Microscope
  856. Speed of Atoms
  857. Wave-particle duality and the photo-electric effect
  858. meassuring spectrum
  859. Dihydrogen Spin Isomers
  860. Bound State Condition
  861. Commutator of charges in QFT
  862. The Heisenberg Uncertainty Principle
  863. Vacuum
  864. Doubt understanding one thing about the Franck-Hertz experiment
  865. Elecron spin
  866. Equation 2.14 in Srednicki
  867. Commutators of Lorentz generators
  868. vacuum fluctuation
  869. Qft, qed, qcd
  870. preparing a certain superposition of electron states
  871. Quantum harmonic oscillator
  872. Quantum entangled particles
  873. Uncertainty Principle?
  874. about density operator
  875. The probe passes over an atom that is 3.20×10^2 nm "tall."
  876. In a multielectron atom
  877. Hydrogen Atom
  878. Hydrogen Atom
  879. product state and orthorgonality
  880. Wall Street Journal on Entanglement
  881. What are orthogonal wavefunctions?
  882. Adding Spins
  883. Changing wavelength while preserving geometry?
  884. Negative and Complex Probability?
  885. frequency of light calculated from wavefunctions
  886. Multi-space instantaneous existence.
  887. electron spin
  888. Peskin and Schroeder p. 20-21
  889. Momentum transferred even though no collapse?
  890. Bohmian Mechanics: Do photons travel faster than c in double slit experiment?
  891. Do particles know their destination before setting out?
  892. Changing The Shape of a potential well
  893. Photon-photon collision confusion...
  894. Interactions between e-m radiation and matter.
  895. Sodium emission spectrum
  896. Sound Waves?
  897. Electric Attractions
  898. Polyatomic quantum harmonic oscillator
  899. Angled electron reflection, coherency
  900. Invariant of a helicoid, like an electron but not quite.
  901. EPR paradox
  902. Does a single photon have a wavelength?
  903. The Pauli-Lubanski vector for massless particles
  904. question about spectral lines
  905. BM, initial state and information
  906. probability current proportional to density
  907. uncertainty principle
  908. How do you use the inverse scattering transform?
  909. Finding eigenvalues of a Hamiltonian involving Sz, Sz^2 and Sx
  910. What is spin?
  911. Schrodinger equation of a free particle in the rectilinear
  912. Can quantum entanglement violate the no hair theorem?
  913. A question on MWI (for Dmitry67)
  914. Off diagonal element of density matrix
  915. BM/dBB and Entanglement, Non-contextuality
  916. Phonon Spectrum
  917. Vacuum energy in Wess-Zumino model
  918. Quantum measurement of energy
  919. momentum eigenstates particle in box
  920. An equation about antimatter
  921. Zeemen Effet - having trouble understanding
  922. Fields in general background
  923. Quantum eraser experiment
  924. Double Slit Question
  925. Quantum friction due to vacuum energy
  926. Quantum tunneling
  927. Expectation value of two annihilation operators
  928. is there any way to use quantum teleportation
  929. what are the problem We have in Quantum process
  930. eulers equation, i think? leonard suskin
  931. Continuous space(time)?
  932. Rotating wave approximation
  933. L-edge of absorption
  934. Time on the Quantum Scale
  935. elicity of dirac eigenstates
  936. NextNano3 simulation and some physics help
  937. A little notation help, on quantum coding
  938. quantum mechanics replacing bohr model
  939. Measurements and The Copenhagen Interpretation
  940. The Position Operator
  941. Completeness of Eigenfunctions
  942. Lagrangian formalism
  943. Relativistic Quantum Mechanics
  944. Plasmon energy storage
  945. Energy of electron and its effective mass
  946. Polarizaition and dipole moment?
  947. Implicate order
  948. Step potential - question about reflection coefficient
  949. Different Double Slit Experiment
  950. spin orbit coupling/orbital degeneracy
  951. Feynman's double-slit experiment
  952. Difference/Relation between Eigenvector Matrix and Q matrix in QR decomposition
  953. Twilight zone?
  954. Are photons affected by the strong force? The weak force?
  955. Path Integrals in Peskin
  956. Bohmian Mechanics and the two slit experiment
  957. Compton Scattering
  958. Quatum Mechanics Explains Black Hole Jets
  959. Variation in action for modified EM Field Action
  960. Relation for Inner Product with States from a Complete Set
  961. Does a single photon have a wavelength?
  962. how does the electron tunnel?
  963. two photons spontaneous emission (2s->1s)
  964. How to solve the Klein Gordon Complex Field?
  965. Fermi energy of Nucleus
  966. What tool do they use to look at newtrons protons and electrons?
  967. Delayed choice quantum eraser experiment
  968. Quantum Computers/Gravity
  969. Qm101
  970. Uncertainty principle and Wave-particle duality
  971. From Noether's Theorem to Stress-Energy Tensor
  972. Quantum tunneling and energy conservation
  973. solitons and Heisenberg uncertainty
  974. Entangled Photon Generation
  975. Non moving photon
  976. Another question about tensor derivatives
  977. How does the quantum model justify accelerating electrons not losing energy?
  978. Random walks and conservation laws in average
  979. Compton effect...does the electron radiate?
  980. Idea for light speed or possibly faster than light speed travel?
  981. Time and atoms
  982. Electron
  983. Generalizing entanglement: Aren't all quantum "events" superluminal?
  984. Muon counter?
  985. Quantum Entanglement
  986. polynomial wavefunction - basic math qu.
  987. angular momentum in whole numbers
  988. colapse of the Wave Funcion and the Schroedinger Equation
  989. when is a propagator on shell?
  990. "quantum to classical transition" or "classical limit"?
  991. photoelectric efffect question
  992. Quantum Tunneling Experiments
  993. The CRT and Electron Superposition
  994. Solving a differential equation similar to Legendre
  995. Buckyball Interference, classical/quantum border?
  996. no-communication theorem question
  997. renormalizable quantum field theories
  998. Is the path integral well defined
  999. Atom Stability and harmonic oscillator
  1000. Validity of Mathematical Proof of Uncertainty Principle
  1001. Potential energies
  1002. Alternative formalization of quantum mechanics?
  1003. normalized function and minimum energy
  1004. Franson Interferometry
  1005. Questions over Quantum Physics
  1006. Photon never have charge¿
  1007. The role of complex conjugation in QM
  1008. Expressing the Klein Gordon Hamiltonian in terms of ladder operators
  1009. Length of closed orbits
  1010. Convergence of vacuum state of Klein Gordon field in a box
  1011. what makes schrodinger cat quantum?
  1012. Any benefits of uncertaintity?
  1013. probability that energy level is occupied
  1014. "Einstein's 'Spooky Physics' Gets More Entangled"
  1015. waves..or particles..??
  1016. Interpretation of the creation and annihilation operators of a (free) scalar field
  1017. Pair Production and Annihilation
  1018. 4-momentum of a massive scalar field in terms of creation and annihilation operators
  1019. Do Gravitons Attract Other Gravitons?
  1020. operator and measurement
  1021. Hg vapor energy levels & Frank-Hertz experiment
  1022. Reason for Fourier transform convention in QM?
  1023. Scattering of Light
  1024. Matter and Energy
  1025. about dipole moment
  1026. Question about properties of light?
  1027. Klein Paradox
  1028. textbook question - number of states
  1029. Time
  1030. Exchange interaction
  1031. Problem with Doppler Broadening
  1032. total angular momentum of N identical bosons
  1033. Lorentz Transformation and Creation Operators
  1034. Zeeman Effect (Weak Field)
  1035. Yet another question about the double slits
  1036. Entanglement, causality and local realism
  1037. What operators can we measure directly?
  1038. Spin
  1039. Divergent tree level Feynman diagrams?
  1040. discretization of Lz
  1041. Force Carriers, Mass, and Speed
  1042. question about scattering and emission
  1043. Laser Broadening
  1044. Dirac Notation.
  1045. Allowed wave vectors of CNT
  1046. Hadamard integral for IR and UV divergences
  1047. Quantum Foam vs Zero Point Energy
  1048. Fourier Transforms, Momentum and Position
  1049. Time evolution of an entangled state
  1050. What are "Jacobi coordinates," and why are they useful?
  1051. about Rabi frequency
  1052. software to calculate simple commutator relation ??
  1053. Super-position / Duality Physically Real?
  1054. Electron's Orbit
  1055. beta function QED
  1056. macroscopic quantum objects
  1057. Counterterms, Srednicki
  1058. Problems in elementary QFT
  1059. Normalization of Wave-Function
  1060. black hole laser or condensate?
  1061. The Schwarz-Hora effect
  1062. kinetic energy of matter
  1063. Weak and strong interaction are attactive or repulsive force?
  1064. Is the principal objection to decoherence thermodynamical?
  1065. basic question on a vector superfield
  1066. Quantum Kinetic Theory
  1067. Helicity and Weyl spinors
  1068. Introduction to Quantum Cryptography
  1069. quantization of orbits
  1070. decoherence of BECs?
  1071. Uncertainty principle in classical mechanics boundary
  1072. broken symmetry
  1073. a mental picture of entanglement?
  1074. why fundamental quantization of energy is hv?
  1075. Poincare-representation of majorana spinor
  1076. Implicate order
  1077. Resolution to the Delayed choice quantum eraser?
  1078. Quantum Mechanical analogy of Newton's third law
  1079. Derivation of Uncertainty Princple
  1080. Photoelectric effect and light polarization in Wikipedia
  1081. Massless representations of the Poincare group
  1082. The ensemble interpretation of QM
  1083. Pre-requisites for path integral formulation???
  1084. Operator in exponential function and generating function
  1085. What would be outcome of experiment?
  1086. 3D phase space of point particle and spinors.
  1087. K.P. 8 band model
  1088. Relation between decay rate (lifetime) and spectral width
  1089. Electron in a potential well
  1090. Question about a harmonic oscillator integral
  1091. gauge invariance of superpotential
  1092. Path integral formulation
  1093. Beyond semiclassical approach
  1094. Questions on chapter 95 in Srednickis QFT book, Supersymmetry
  1095. A pair of 2D harmonic oscillators at a point and Dirac eq.
  1096. If light were an electromagnetic wave...
  1097. Uncertainty of a single photon in light scattering question
  1098. Compton effect vs photolectric effect
  1099. Commuting operators => Common eigenfunctions?
  1100. Transmission function(probability) T(E) in tight binding
  1101. Single Photon Polarization
  1102. How does CMBR differ from ether (SR self study -- Question from W. Rindler)
  1103. From Cartan's Theory of Spinors, x1^2 + x2^2 + x3^2 = 0
  1104. expectation value for Gaussian Wave packet
  1105. Quantum Mechanics and Special Relativity (violations)
  1106. What is the value of the fine structure constant at Planck energy?
  1107. Polarization-maintaining fiber at the photon level
  1108. Resulting state vector interpretation
  1109. the significance of commutation
  1110. Wanted: quotes that encourage thinking of experiments instead of measurements
  1111. Spooky action at a distance
  1112. conservation of weak isospin
  1113. SU(2) in Standard Model and SUSY extensions
  1114. Quantum computing?
  1115. Wave Equation in 2 Dimensions - Basic
  1116. How to solve generalised eigenvalue problems?
  1117. Density matrix doubt
  1118. qchem vs qphys
  1119. Deriving Q function
  1120. Polarization Eraser & Entanglement
  1121. what is the self-energy
  1122. Question about the Klein Gordon Propagator
  1123. green function (retarted)
  1124. Eikonal Factor
  1125. Point Particles vs. String Theory
  1126. Superpositons of a uranium atom
  1127. massless particles
  1128. Black Hole Questions
  1129. Superposition of the electron
  1130. Energy transfer in Teleportation
  1131. infinite potential well
  1132. Quantum Teleportation
  1133. Graviton and Photon Emission
  1134. Empty Space
  1135. Quantum mechanical resistivity
  1136. 2 Calabi-Yau Questions
  1137. spinors
  1138. Electron Double-Slit
  1139. annihilation - matter/antimatter
  1140. double slit experiment, question on when the path is "determined"
  1141. What is a 'magnetic substate'? (Magnetic-Optical Traps)
  1142. Is Quantum Physics the theory of everything if...
  1143. about photon
  1144. Is the generation of one electron at a time probabilistic or deterministic ?
  1145. Conway and Kochen FW theorem
  1146. first energy level
  1147. Atomic energy level
  1148. Some confusion about Ballentine Sec 3.3 Generators of Gallilei Groups
  1149. Hardy's Paradox
  1150. Angular momentum and hydrogens atom
  1151. from wave to ket
  1152. Compton Scattering from bound electrons
  1153. Multiple particle system
  1154. Collapse of Pauli exclusion principle
  1155. Why do subatomic particles act the way they are?
  1156. Bra-ket notation
  1157. Is there an intermediate 'particle' to pair production?
  1158. Q about light.
  1159. hamiltonian with two masses
  1160. Is Spacetime smooth?
  1161. Spontaneous parametric down-conversion practicalities
  1162. Short distance divergences in thermal states
  1163. landau pole
  1164. Derivative in Dirac Notation
  1165. Quantum Physics and Parallel Universes...and your mind...
  1166. Difference between LDOS and transmission function
  1167. Electrons
  1168. Uncertainty by relativity
  1169. wavevector?
  1170. Schmidt Decomposition
  1171. Quantum Mechianics and Telecommunications Engineering?
  1172. Photons and the Uncertainty Principle
  1173. srednicki p.81
  1174. optical theorem
  1175. normal coordinate substitutions with periodic boundary conditions
  1176. jahn-teller theorem and the CH_4 molecule
  1177. does probability have units
  1178. How to prepare pure state?
  1179. Why can fermions occupy only one state and..
  1180. Relating the time evoution operator for the state vector to the classical hamiltonian
  1181. question on step potentials and schrodingers equatio
  1182. Unitary operator/matrix
  1183. How high can transmission function be?
  1184. SU(N) generators
  1185. Angular commutation relations
  1186. How to plot orbitals
  1187. Shape of a free electron wave
  1188. Confused about the graviton
  1189. ANSWER me precisely
  1190. Parallel universes and the Quantum Field
  1191. On the definition of Von Neumann entropy
  1192. Moments in QM
  1193. Electron Phase..positive and negative?
  1194. A silly question I'm sure about Feynman's "many paths"
  1195. Autocompensation of polarization state changes - Mirror/reflector and Faraday mirror
  1196. Cutting off our Ignorance:renormalization
  1197. polar coupling between electrons and optical phonons
  1198. QM support for Hardy
  1199. What is a boson?
  1200. How does the Electron get knocked off by a photon
  1201. Lorentz Algebra in Boosts for the spin-1/2 Dirac Field
  1202. Uncertainty principle violation?
  1203. Quantum Tunneling - some silly thoughts
  1204. wavefunction for particle inside a disk
  1205. books on experimental QM
  1206. Interpretations (Continued Discussion)
  1207. Is 3s to 2s transition for Hygrogen forbidden?
  1208. Faster-than-light communication
  1209. Alternative linear comb. to vizualize hydrogenic orbitals p,d etc
  1210. path integrals in QED
  1211. peskin versus effective action
  1212. The Difference Between a Few Terms
  1213. UV/IR - what do they mean??
  1214. Intro QM questions
  1215. Electrons vs Quarks
  1216. uncertainty in simple harmonic oscilator
  1217. Very elementary notation question
  1218. "Generator of rotations"...rotations of WHAT?
  1219. Light Charge?
  1220. Good Perturbation/Catastrophe Theory Books?
  1221. Commutator of Position and Energy
  1222. Simultaneous diagonalization and replacement of operators with eigenvalues...?
  1223. Casimir Effect.
  1224. symmetry restoration
  1225. Young's Double Slit experiment
  1226. Particle collisions collapse wave function?
  1227. About feynman rules for an external field
  1228. Can energy be lost from a Photon?
  1229. Physics Forums prize question
  1230. Momentum Representation
  1231. Photoelectric effect
  1232. Quantum cryptography
  1233. solution gross pitaevskii equation
  1234. Did photon obey Uncertainity Principle?
  1235. antigravity
  1236. metal
  1237. Synthesis between Quantum Chaos and QFT.
  1238. Question about visible light properties.
  1239. I Need Convincing
  1240. BECs and hidden variables
  1241. energy density of surface states
  1242. Angular Momentum & Plank's Constant
  1243. Majorana equation in Algebra of Physical Space
  1244. black body radiation: can you help me understand it (better)?
  1245. Radioactive Decay
  1246. The Born Rule has died
  1247. Virtual Particles Creation
  1248. Quantum theory and causality
  1249. How does the Schrödinger equation lead to the QM theory of measurement?
  1250. Quantum foam
  1251. Free particle and its energy.
  1252. Four momentum vector from energy-momentum-tensor
  1253. Interpretations of Quantum Mechanics
  1254. Energy, Time, Position, Momentum which is more fundamental?
  1255. Question about Dirac equation
  1256. Thickness of Quantum Well ??
  1257. waves - bound and unbound states
  1258. Feynman diagram: incoming and outgoing particles
  1259. Charge Density from Density Matrix?
  1260. Spontaneous Symmetry breaking,phase factor
  1261. Non-degenerate and degenerate perturbation theory
  1262. perpendicularity of quantuum states
  1263. What do you think these Weak Measurement, Quantum Uncollapse Tests. Re-write QM??
  1264. Just a thought
  1265. one-qbit quantum gates
  1266. Self-action, for what reason?
  1267. What is the definition of a momentum *measurement*?
  1268. Most accurate form of maxwell equations?
  1269. Reflecting photons off a surface
  1270. Relational Interpretation of QM
  1271. what CAUSES black cody radiation?
  1272. Relational reasoning (Rovelli's RQM, Smolin etc)
  1273. (In)distinguishable particles
  1274. Ionisation and the Photoelectrical Effect
  1275. Answer me precisely__3
  1276. How to make light act like a particle?
  1277. Irreducible Representations of so(4,C)
  1278. Euclideanized Action
  1279. spatial linewidth and density matrix
  1280. Pertubation and density matrix
  1281. Entropy and the Uncertainty Principle
  1282. Questions about variations on Double Slit experiment
  1283. Cave of the Winds, CO - photons
  1284. Fourier transform of a wave equation
  1285. The LSZ reduction formula
  1286. isn't classical "spin" an instance of spin 1?
  1287. density matrix
  1288. Spin 360 rotation - experiment
  1289. hilbert space dimension contradiction
  1290. Seeking "Point Particle" Explanation
  1291. Emissive power for a gas
  1292. Virtual particles
  1293. Diffraction Grating Video (QED)
  1294. Quantum Experiments Videos
  1295. Question on function of operators
  1296. Photoelectric Effect
  1297. Quantum Harmonic Oscillator
  1298. Why "mediated by photons"?
  1299. Quantum boundaries
  1300. QED photon vs photon as particle
  1301. one more naive Q?
  1302. spin density matrix
  1303. I really need help with spin quantum number.
  1304. absorption in nonrelativistic quantum m.
  1305. Path Integral Propagator Normalization in Lewis Ryder's QFT book
  1306. Qm=>qft
  1307. How does MWI resolve low probability multiverse events?
  1308. Laser field: pump & probe
  1309. Particle and Wave Models
  1310. spin density matrix
  1311. Little fundamental question
  1312. Having trouble understanding the wave function collapse.
  1313. Finite Square Wells.
  1314. Invariance of Schrödinger's equation
  1315. Fermions in bound states and their wavefunctions
  1316. Using Standard Model
  1317. Decoherence vs. entropy
  1318. Photons do not travel in straight lines
  1319. Photons wave-like behaviour
  1320. Dirac conserved current vs Klein-Gordon conserved current
  1321. Photoelectric and Compton Effects
  1322. Time and Space Theory (pleas critic and give your ideas)
  1323. Pauli's exclusion principle and cooper pairs
  1324. Popper/Lande interpretation of QM
  1325. What is the wavefunction of the localized particle?
  1326. Application of Bethe Ansatz
  1327. Born Approximation.
  1328. Formation of entanglement
  1329. What is the essence of quantization?
  1330. Photon wavelength quantization?
  1331. analytical expression of the excited landau level wave functions
  1332. What's the total angular momentum operator for a system of two particles?
  1333. Simplified Heisenberg Hamiltonian; Linear combinations of basis states
  1334. Self-Adjoint Operators and Reversible Logic gates
  1335. QM vs. null hypothesis
  1336. Sampling at 1/n Planck time.
  1337. More Path Integral questions
  1338. Quantum Cosmology - Imaginary Time
  1339. Does particle interaction take time?
  1340. Quantum Leaping & Perpetual Motion?
  1341. Problem with Path Integral Expressions in Peskin And Schroeder Section 9.1
  1342. Problem with modeling solar cell voltage distribution
  1343. Bohm and Hardy
  1344. What is Rabi frequency?
  1345. Classical Limit of QFT?
  1346. Genereral:Questions about Srednicki's QFT
  1347. one atom in space what happens
  1348. Degenerate perturbation
  1349. Negative Probabilities
  1350. Reality, locality and determinacy.
  1351. quick Question: Normalising phi for the Hydrogen atom.
  1352. Transition from QFT to Classical Physics using Path Integrals?
  1353. New Law of Physics Could Explain Quantum Mysteries
  1354. Does size matter in wave to particle momentum transfer?
  1355. Quantum Measurements and Macroscopic Objects
  1356. Negative energy photon emission
  1357. Quantum superposition
  1358. About Feynman's 'QED:The strange theory of light and matter'
  1359. Srednicki Path Integrals eq 6.22
  1360. I think I have good questions! About superposition and splitting
  1361. wilson loops (srednicki eqn. 82.37)
  1362. is this good
  1363. Did any scientist did experiment to prove that current measurement changed the past?
  1364. Unpolarized current
  1365. Quantum Locality
  1366. reconstruction of potential V(x)
  1367. Momentum conservation in the photoelectric effect
  1368. Amplitude of a photon
  1369. Bifurcation and information
  1370. How is entanglement not "weird"?
  1371. wick rotation is consistent with caculus?
  1372. QM mathematical structure
  1373. Pion Nucleon Scattering
  1374. Tunneling on a macroscopic scale
  1375. derived form of plancks distance
  1376. There is no Copenhagen interpretation of QM
  1377. The Wavefunction
  1378. Thomas Young's Double Slit Experiment
  1379. Paradox in EPR like setup
  1380. Two basic questions.
  1381. Nuclear magnetic resonance dipole dipole interaction
  1382. about chemistry
  1383. the wave equation in a Black Hole.
  1384. A local deterministic theory that violates Bell's inequaities
  1385. dirac delta
  1386. electron transition
  1387. question about color filter in experiment planck's contants
  1388. About an (informal, discussion-oriented) Quantum Physics model
  1389. Is Monochromatic Light Real?
  1390. Polarization by reflection
  1391. Stern Gerlach Experiment
  1392. Photon
  1393. a few general questions
  1394. Question of Measurement
  1395. Quantum uncertainty on macroscopic scale
  1396. Wave function collapse and entanglement
  1397. Deriving Dirac Equation
  1398. Alternate formulation of Dirac Notation
  1399. Two-photon physics
  1400. quantum corrections to force laws
  1401. The Quantum Theory of Fields: Effective or Fundamental?
  1402. Bohr's Quantization of Angular Momentum
  1403. Macroscopic Realism
  1404. NMR and energy inside the coil
  1405. Photon absorption and probability of atomic electron transition
  1406. Good mathematics/mathematical physics book with classical/quantum mechanics info?
  1407. Varying mass in Schrodinger Equation
  1408. Arrow and/or Pendulum of Time
  1409. Einstein on QM
  1410. Uncertainty v. Predictability
  1411. Could someone explain the "Schrodinger's Cat" experiment to me?
  1412. Double Slit Question
  1413. a funny question into my mind. If you are completely isolated from all environment,
  1414. azimuthal quantum number,l and magnetic quantum number, m
  1415. uncertainty rule
  1416. how to check if Lagrangian is parity invariant?
  1417. is the hamiltonian the only function that has unitary time evolution?
  1418. Need Help Understanding Misner Space Terminology
  1419. Metric and Covariant Derivative
  1420. Why doesn't the electron have a definite position?
  1421. sequential stern-gerlach experiment
  1422. about matter waves
  1423. Attractive forces
  1424. Copenhagen: Measured or Observed?
  1425. What Exactually is a Photon?
  1426. IS THIS the Heisenberg uncertainity principle?
  1427. About Wave Functions
  1428. Questions about the de-Broglie Bohm interpretation
  1429. Moving from Dirac equation to Lagrangian density
  1430. Entanglement of photons
  1431. measurement
  1432. Eigenfunction
  1433. Position Measurement
  1434. what exactly is the solution for principle of locality and speed of light?
  1435. Elastic scattering and momentum conservation
  1436. Varying cross section superconductor
  1437. Please suggest a book including cross section
  1438. Commutator of kinetic energy and potential energy
  1439. What exactly is barrier tunneling and potential barrier?
  1440. Velocity of spin & electron velocity ?
  1441. The Uncertainity Principle
  1442. What is actually phase velocity??
  1443. Velocity dependent fermion number?
  1444. Quantum effects at the neurological level
  1445. Birgit Dopfer's Phd Thesis
  1446. what happens to the wave function after an operator transformation?
  1447. Particle Creation in the Bohmian Approach
  1448. Correlation Functions in Path Integral Formulation of QFT
  1449. about the first postulate
  1450. Orthogonality of wave function of finite potential well
  1451. hermitian operators in schrodinger eqn.
  1452. Is there slight evidence we live in block universe?
  1453. Controlling Spin of an Entangled Particle, Causality
  1454. Quick question on the Schrodinger symmetry group
  1455. What is a measurement? (layperson question)
  1456. average energy of a harmonic oscillator
  1457. De Broglie Wavelength - How does this hold for slow objects?
  1458. Bell inequality tests questions
  1459. Spin question
  1460. Have magnetic monopoles been detected?
  1461. Time as a series of interactions
  1462. Carrier Mobility of a semiconductor
  1463. More correlation functions (Chapter 4, Peskin and Schroeder)
  1464. Uncertainty principle
  1465. ask for need
  1466. The Source of Proton Charge
  1467. Electromagnetic fields around neutrons?
  1468. Heisenberg's microscope
  1469. Thermodynamic Basis of the Exclusion Principle
  1470. Planck's constant
  1471. Self-reference, measurment and entanglement
  1472. Is anything physically impossible in quantum mechanics?
  1473. Stern-Gerlach
  1474. Is there an explanation of Quantum Tunneling Using QFT and not QM?
  1475. operation on a state vector
  1476. quantum harmonic oscillator
  1477. Uncertainty principle and standard deviation.
  1478. photons
  1479. Stimulated Emission
  1480. Wave Properties of Electrons and their Atomic Orbitals
  1481. Can we predict element decay using Quantum mechanics?
  1482. Uncertainty principle and limit of momentum.
  1483. one question about h*f=m*c*c
  1484. Poisson brackets, commutators, transformations
  1485. What are postulates and what are derived?
  1486. Quantized energy in infinite potential well
  1487. Electron movement
  1488. Confusion about getting uncertainty by using differetiation.
  1489. A very simple question re: entangled photons
  1490. Solution to the Problem of Correlation of Matter and Field
  1491. Interpretation of Interaction in Boosts in QFT
  1492. A newbies question on randomness.
  1493. Aren't Entanglement & Uncertainty mutually exclusive?
  1494. Naive picture of understanding Spin-Orbit Coupling
  1495. difference between SU(N)xU(1) and U(N)?
  1496. if i stand still , you cant find me
  1497. Quantum Harmonic Oscillator: Negative Kinetic Energy Question.
  1498. Adjoint of commutator
  1499. chiral symmetry
  1500. 3 body relativistic phase space
  1501. Mass falling to ground (uncertainty principle)
  1502. What technologies based on quantum mechanics affect our daily lives?
  1503. How are electrons considered waves?
  1504. Do I understand this?-if I stretch a rubber band from a 1" length to a 2" length...
  1505. Atomic Components and the Absorption of Photons
  1506. How can energy be quantized with E=hv
  1507. Commutator of the density operator
  1508. Calculating the Stark Effect (Spectral line splitting)?
  1509. Double Slit Experiment - Blind Observer
  1510. Photons vs Basketballs
  1511. energy quantization in schrodinger equation
  1512. Photoelectric Solar Sail
  1513. How many electrons in all of "6f" oribtals?
  1514. Superposition - basic question
  1515. Eigen kets
  1516. Quantum Probabilities
  1517. quantum computer working
  1518. Short question: Spontaneous emission from Feynman diagrams?
  1519. Direct Product Basis for Interacting Systems
  1520. also about the Planck hypothesis
  1521. Distinguishing Quantum States
  1522. Calculation of probabilities in QM
  1523. wavelength in QM
  1524. SUSY computational questions:dots!
  1525. Uncertainty Principle
  1526. Concerning the momentum operator
  1527. Intuitive Understanding for Commutation
  1528. ensemble average in quantum computing
  1529. What are the equation(s) that determine free electron wave amplitude?
  1530. Regarding the observer effect.
  1531. Angular momentum commutator derivation
  1532. Eigenvalue plots Tannoudji's Quantum Mechanics Vol. II
  1533. Quantum Electronics
  1534. Charge of down, up , electron; (-1/3, 2/3, -1)*3 more natural?
  1535. Wavelength Less Than Planck Length?
  1536. Heisenberg Uncertainty Principle
  1537. physical chemisty
  1538. Is this sum over impulses
  1539. Another confusion: How many measurements is "many"?
  1540. Stationary Perturbation Theory
  1541. Infrared Divergence Question
  1542. Quantum optics
  1543. QFT recipes
  1544. Energy of Atomic Electrons
  1545. Quantum walk on the line
  1546. Question about operators
  1547. Speed of light in transparant materials
  1548. Weinberg Vol 1: (2.4.8)
  1549. Delta-function potentials, scattering states
  1550. violating uncertainity principle
  1551. Quantum Zeno Effect.
  1552. Time, discrete or Continuous?
  1553. Path Intergral quantization for Relativistic Point like particle?
  1554. How to switch between momentum/real space
  1555. Pilot Wave Theory
  1556. the ways of Erwin
  1557. Constant question
  1558. Violation of Bell's inequality
  1559. Double slit experiment in a Bubble Chamber
  1560. Entangled protons in a crystal lattice
  1561. How does electron change properties of matter?
  1562. Asymptotic behaviour after perturbation
  1563. Schrodinger Equation
  1564. Double slit experiment with spin
  1565. Lie groups in QM
  1566. renormalization with cutoff
  1567. A question about probabilities
  1568. An amateur question about EPR
  1569. from quantum field theory to quantum mechanics
  1570. 3d harmonic oscillator PE function degeneracy
  1571. Wave-particle duality of phonons?
  1572. Planck length.
  1573. about susceptibility
  1574. discrete and continuous confusion
  1575. Cryptography Books/Websites
  1576. Probability Current Density or Flux
  1577. Entanglement and String Theory
  1578. Raising and Lowering Operators
  1579. Representation of second quantization
  1580. Seeing color
  1581. Gaussian Wavepacket Tunnel Through double barrier
  1582. State/wave function after measurement?
  1583. HUP and the Double-Slit Experiment
  1584. "Uncollapsing" a state?
  1585. Input and Output with a Quantum Computer etc
  1586. 2slit-electron interference with electric field effect
  1587. Quantum Vacuum, what is it?
  1588. what is saturated absorption?
  1589. Gravity and Electromagnetism
  1590. Eigenstates of the Hamiltonian
  1591. Topology in Quantum Mechanics
  1592. Entanglement question.
  1593. About fields
  1594. Determinism of the wave function
  1595. 1-D potential barrier
  1596. Entanglement
  1597. And if everything was a wave?
  1598. Amplitude damping with harmonic oscillators
  1599. Since protons are not spherical, are their charge fields non-spherical?
  1600. wave particle duality as applied to photon
  1601. Locality vs Separability
  1602. How does an Electron 'jump' from one orbit to the other?
  1603. Loschmidt's paradox-II: Quantum Decoherence
  1604. Quantum chaos
  1605. Recovering the generator of rotation from canonical commutation relations
  1606. Pauli-Villars regularization
  1607. Sigma matrix
  1608. How can I get the wave function
  1609. Entangled particles and measurement
  1610. Operators on Tensor States
  1611. variational method in a finite square well
  1612. Attosecond Spectroscopy, QM, and Atomic Geometry
  1613. The particle INSIDE the barrier
  1614. nonlinear vacuum permittivity?
  1615. Workshop on Weinberg's Quantum Theory of Fields
  1616. Multitude of Quantum Mechanics questions
  1617. Trace of Pauli Matrices
  1618. The "Frequency" of one Photon?
  1619. do we really need loop diagrams?
  1620. The "wave nature" of the wave function.
  1621. difference between fluorescence and phorforescence
  1622. wave function
  1623. Is the concept of electron shells conceptually realted to quantum tunnelling?
  1624. Boundary between deterministic reality and probabilistic reality
  1625. What is the QFT picture of forces?
  1626. Basic question on QFT and the standard model
  1627. Anyons
  1628. a simple QM experiment analysis question
  1629. Srednicki 9.17, 9.18
  1630. Direction of vector precession
  1631. why graviton particle theory concept is not accepted?
  1632. Algebraic (ladder) solutions in QM
  1633. Waves
  1634. No cloning theorm
  1635. A question about plank constant
  1636. Question about the nature of electrons and the strong force
  1637. Quantum weirdness of photon behavior
  1638. Functional Quantization of Scalar Fields
  1639. Variational Method
  1640. A spherical tensor operator
  1641. Does the existence of a ladder operator imply that the eigenvalues are discrete?
  1642. bra-ket multiplication
  1643. Momentum measurement
  1644. Four Point Correlation function from Generating Functional
  1645. Continuity of Function and Derivative at boundary.
  1646. Proving lorentz invariance of Dirac bilinears
  1647. one question on average thermal velocity of free electron in metals
  1648. Why no EOM in QFT with higher than second order derivatives in time and space?
  1649. commuting operators
  1650. Uncertainty Principle
  1651. Propagation of wave packet
  1652. g-Theorem
  1653. Time for photon to reach the furthest point of diffraction?
  1654. Two entangled electrons
  1655. Question about a QM postulate
  1656. Cardinality argument in the Casimir effect
  1657. Energy levels
  1658. Imaginary Time and Path Integrals?
  1659. Invariance of the action under a transformation
  1660. Nonequlibrium statistical operator
  1661. Srednicki's textbook
  1662. Simple question about spontaneous particle production
  1663. decoherence and cross section
  1664. Confused about wave functions
  1665. antiparticles
  1666. Wave function of Stationary State
  1667. Bose-Hubbard Model
  1668. Virtual Particles: How can they be responsible for attractive forces?
  1669. Bidimensional quantum rotor
  1670. Quantum Energy Teleportation and Decoherence
  1671. "cosmic-scale delayed-choice" experiment
  1672. fluctuation in terms of Hilbert space formalsm
  1673. Standard Model Lagrange Density, 2D vectors, Lattice Theory.
  1674. momentum and fourier series
  1675. operator
  1676. Zero points of particle wave function?
  1677. 3 question of Ballmer experiment
  1678. what do we mean by"minus" energy ??
  1679. Particle In a finite potential well
  1680. Acceleration of the Photon and the shape of it's wave
  1681. Boundary conditions for two dimensional problems in Quantum mechanics
  1682. Interacting theory lives in a different Hilbert space [...]
  1683. Atom in a Box Pair
  1684. Casimir effect -- silly question, but...
  1685. Stochastic Interpretation
  1686. Measurement collapse as a perturbation?
  1687. the modern view of decoherence: A layperson's qestion
  1688. RD Thought Experement (wikiversity article)
  1689. Pencil tipping problem - trying to understand uncertainty
  1690. Info regarding energy density of empty space?
  1691. Breaking Down the Uncertainty Principle
  1692. Infinite volume limit literature?
  1693. Particle in a potential Well interacts with the wall without touching it???
  1694. Beginners Question Uncertainty Principle
  1695. Derivation of Schrodingers Equation
  1696. Questions about Quantum state, Pauli exclusion principle and chemistry.
  1697. Help for selection rules
  1698. Non-relativistic limit of Klein Gordon (and massless limits)
  1699. Degree of freedom, 1D H.O., position and momentum.
  1700. DFT for configuration of atoms
  1701. Q.M. on S^6, add potential gives Q.M. on S^3?
  1702. searching the phenomenological renormalization group equation for 2d ising model
  1703. Macroscopic Quantization
  1704. Please Compute Concurrence...Whats wrong!!!
  1705. Electron spin confussion
  1706. QM Interpretations
  1707. Relativistic corrections to CHSH vs. Preferred frame
  1708. Operators and eigenstates
  1709. Simple Math and quantum phyiscs 5 x 0 and e =mc2?
  1710. Basic Formula?
  1711. Double slit - where do they aim?
  1712. MS renormalization scheme /RG & Srednicki ch 27,28
  1713. Is this a correct understanding?
  1714. uncertainty versus indeterminism: formulation?
  1715. Lack of Relativistic Consideration
  1716. SR "Reference Frames" in QM ?
  1717. Expectation formula in Dirac notation.
  1718. Selection Rules Question
  1719. How was this Fermi telescope experiment done?
  1720. Question about QCD
  1721. what is the difference between probability and probability density?
  1722. Uncertainty vs Determinism
  1723. normalization
  1724. a relation between photon and electron !- need discussion
  1725. Simple Energy Levels confusion
  1726. Macroscopic quantum effects and gravitational wave detector
  1727. Questions for 1-D harmonic oscillators
  1728. density of a subatomic particle
  1729. Aharonov Bohm Effect (gauge invariance)
  1730. Double-slit in gas chamber
  1731. SWE Solutions' General Form
  1732. Trying to learn the uncertainty principle
  1733. density values for e-, p+ and n
  1734. Can the Quantum Zeno Effect be solely attributed to decoherence?
  1735. Does the wavefunction have a zero value anywhere??
  1736. Continuity equation for Schrodinger equation with minimal coupling
  1737. A seeming contrdiction in deriving wave function for delta function potential
  1738. Probablilty of Neutrino flavour change
  1739. What is the meaning of En^+ or En^-
  1740. how to measure observables
  1741. Decoherence question
  1742. Functional diffential-integral equations
  1743. Determinant of density matrix
  1744. No entropy/environment = no time flow?
  1745. Spins as qubits
  1746. The enigma of the photon.
  1747. Questions on the test that led to Many Worlds
  1748. Everett Interpretation in English; correct or flawed?
  1749. Wave particle duality
  1750. S - matrix
  1751. how many splits in one measurement in MWI?
  1752. A Realtively General Question for you Quantum Physicists
  1753. MUST the variation of the action be zero?
  1754. Shankar 7.5.2 answers in the back
  1755. Quantum Tunneling: Observed properties of the particle within the barrier.
  1756. Measuring energy without collapsing the wave function?
  1757. Proof of a smallest particle?
  1758. Parity and Time Reversal symmetries.
  1759. what is Spin Hall effect and quantum hall effect
  1760. Do gravitons spiral around a monopole?
  1761. What is the wavefunction?
  1762. When do the laws of general relativity breakdown?
  1763. particles as representations of groups
  1764. Propagator and Causality
  1765. Why is the Hilbertspace complex?
  1766. what does space quantization of angular momentum actually signify?
  1767. Quantum gases. The ideal Fermi gas
  1768. complex logs
  1769. Wave equation variables.
  1770. Mwi
  1771. Conformal Field Theory
  1772. Incertitude relations from QFT
  1773. Kochen-Specker for two particles
  1774. Good Resources for Feynman's Path Integral
  1775. Radial Dirac delta
  1776. Matter waves are oscillations in what medium?
  1777. why the rank of an irreducible tensor must be an integer?
  1778. Symmetry clarification
  1779. Cause and effect in QM
  1780. Can photons affect each other's trajectories?
  1781. Bells inequality be satisfied with equivalent local QM?
  1782. double slit experiment - with molecules?
  1783. how to prove renormalizability
  1784. The compleness of a basis
  1785. Suggestions... A Good Book?
  1786. Rigorous Quantum Field Theory.
  1787. Is it true photons will not produce an interference pattern in a vacuum?
  1788. Bizzard measurement outcome of Angular Momentum, Why?
  1789. Can someone elaborate on the ensemble interpretation for me?
  1790. Bubble chamber and HUP
  1791. Is an indeterminate logical value hidden within Quantum Theory?
  1792. On the definition of Active Transformation
  1793. ladder operators, a technical question
  1794. Does instantaneous communication implies a preferrred Lorentz frame?
  1795. Can someone give me a geometrical description of the math in QM?
  1796. Integrable Quantum Field Theory
  1797. Decoherence made simple
  1798. Schrodinger Equation!
  1799. Integrable Quantum Field Theory
  1800. Stern-gerlach math resources?
  1801. Molecular Flux, Kinetic Theory of Gases
  1802. how do fields change if there's no void
  1803. Gauge Invarience Question
  1804. Time-energy uncertainty principle
  1805. Are physicists happy with Quantum Mechanics as it is?
  1806. Bra/Ket notation
  1807. double-slit experiment
  1808. Feynman Amplitude Q
  1809. Wave function collapse and the statistical nature of quantum states
  1810. Quick question on the EPR paper...
  1811. Charmonium: estimating the mass - trial wavefunction for use in variational method??
  1812. Entaglement
  1813. Statistical Mechanics, Molecular Flux, Kinetic Theory
  1814. Rotational energy levels vs l quantum number
  1815. QM newbie (me) asks <sigh> yet another question about Bell inequality experiments...
  1816. Tensor force
  1817. Dual slit experiment: closing/opening a slit after the particle passes it . . .
  1818. momentum space
  1819. Beginners guide to Quantam Mechanics?
  1820. Entanglement in scattering processes
  1821. How can objects have wavelengths?
  1822. dirac delta
  1823. Detection of a non-interacting particle
  1824. Photon entanglement and fair sampling assumption
  1825. Bloch sphere model for many spins?
  1826. Particles not basic entities?
  1827. Kinetic Gas Theory
  1828. Scalar product of many-particle states?
  1829. modeling dissipation...what makes it non-unitary?
  1830. uncertainity Principle , particles and antiparticles
  1831. History of the Taylor-Phipps version of the Stern-Gerlach experiment
  1832. Time-dependent perturbation theory
  1833. Reason of rejection
  1834. Bohm and others
  1835. Why amplitude squared gives probability / Schrodinger Equation
  1836. Degenerate perturbation theory wavefunction correction
  1837. schrodingers equation for the hydrogen atom.
  1838. superposition of states of the hydrogen atom
  1839. Interpretations of quantum eraser experiment
  1840. Physical properties & threshold frequency
  1841. Momentum Operator Construction
  1842. the magnetic field of a photon
  1843. The Unfair Sampling Assumption & Bell Tests
  1844. Some Explanation about Heisenberg,s Uncertainty Particle
  1845. graviton, doppler?
  1846. Bound state formalism in QFT
  1847. probability of superposition of states
  1848. Virtual Photon
  1849. What chronology of Bell inequalities testing ?
  1850. Physical interpretation of Lorentz invariant fermion field product?
  1851. Quantum Operators Indices Confusion
  1852. Hermitian conjugation and conserved current in the Dirac equation
  1853. Does a photon travel in a straight line?
  1854. Bonding and electron transfers using the model of electrons as a wave
  1855. electrons distinguishable ?
  1856. L commutation relation, Baym
  1857. Entanglement entropy
  1858. dirac delta potential
  1859. TISE and Double-Slit Experiment
  1860. [cryptography] quantum key distribution
  1861. Two particle probability density
  1862. Gaussian Wave Packets - Fiction?
  1863. Apparent violation of the px uncertainty principle in bubble chamber measurements
  1864. Quantum Computer
  1865. Wick's Theorm to Feynman Diagrams?
  1866. Quantum Law of Malus
  1867. Question regarding the Pauli Exclusion Principle?
  1868. Bethe Stopping Power
  1869. Missing Space
  1870. Schrodinger Eq. in 3D
  1871. On the single/two-slit diffraction problem and superposition.
  1872. How to incorporate the weak force into the wave function.
  1873. Question on Bohmian Intepretation
  1874. Quantum Physics Debate, Is It Relevant?!
  1875. feynman diagrams - neutrino interactions
  1876. Question about Entanglement and electron spin
  1877. Applications of Berry's Phase
  1878. Electron frequency and wavelength
  1879. wave function of an observer, 'always collapsed'?
  1880. My biggest issue with QM
  1881. Quantum computing (Why is it important?)
  1882. Equal commutators
  1883. time particles?
  1884. Overlap integrals: What are they and how do we arrive at the formula?
  1885. Before there were observers?
  1886. How does a magnetic feild work?
  1887. Photons and Bose Einstein statistics
  1888. Pauli Matrices as generators of SU(2)
  1889. Spin - any book recommendations?
  1890. Can the wave function be a constant?
  1891. Reading the value of a qubit without changing its value
  1892. Silly Question, silly state
  1893. Ward identities in Minimal Subtraction Scheme
  1894. Shankar's principles of quantum mechanics solutions
  1895. two slit experiment - variable detector
  1896. macroscopic bose einstein condensate
  1897. Spin up/down issue
  1898. Schrödinger's cat
  1899. is it acceptable to use plane waves?
  1900. Effect of Negative permittivity?
  1901. Double slit interpretation - what is the mainstream view?
  1902. Entanglement entropy vs Entropy
  1903. Books detailing Bell's inequality derivation
  1904. Second quantization
  1905. Coincidence counting in Bell experiment
  1906. OPEs in conformal field theory
  1907. Quantum arrow of time
  1908. the quantum physics of time travel
  1909. Questions on Many Worlds Interpretation
  1910. Tensor products and subsystems
  1911. Does anyone actually use the term "ensemble interpretation"?
  1912. what is spin for neutral particles
  1913. Why doesn't the photon...
  1914. Simple explaination of pertibation theory
  1915. Hydrogen Atom Radial Wave Function (limit problem)
  1916. Shooting humans through a giant double slit experiment
  1917. Beginning quantum mechanics
  1918. Global symmetry of an N-component Klein-Gordon theory?
  1919. does chaos means long term numerical simulations useless?
  1920. Program for Traces of Dirac matrices
  1921. Uncertainty Principle and lifetime
  1922. Weak Measurements and Determinism
  1923. Square integrable functions blowing up at infinity
  1924. What exactly is spin?
  1925. I now know what slit the photon came out of!
  1926. Bell's Theorem and "Counterfactual Definiteness"
  1927. Doube slit electron with single slit photon emitter and detector
  1928. Double Slit/Photo Detection/Is it the SAME photon?
  1929. Spin effects
  1930. Real and imaginary parts of wave function
  1931. Can tima be an operator?
  1932. Time in a Steady-State Quantum System
  1933. Probability of finding a particle in a certain state, using projection
  1934. Transparency!!
  1935. How to fit quantum LHO into quantum mechanics?
  1936. about Zeeman effect
  1937. Time in QM
  1938. What is a non-orthogonal measurement?
  1939. Uncertanty principle explanation
  1940. How can Uncertainty principle be used to get speed of alpha particle
  1941. The diatomic molecule
  1942. modelling the shape of an atom
  1943. is space energy
  1944. Amplitude paths and Markov processes
  1945. Leonard Susskind improvisation on the uncomfortable notion of probability ;)
  1946. ground state of a finite well
  1947. Why is there hybridization of orbitals?
  1948. Just how large is a photon?
  1949. self-adjointness domain of P_r^2
  1950. Qubits - Quantum Computing
  1951. Help: Planck Scale and Fine Structure Constant
  1952. Classical limit of the commutator is a derivative?
  1953. Emission in hydrogen atom: recoil and photon properties
  1954. Measure on Path Integral not defined
  1955. Angular Momentum
  1956. Planck's constant, h. The limit goes to zero?
  1957. A question about Quantum Tunneling
  1958. irreducible representations of translations
  1959. "O Plus" symbol
  1960. Losing electrons
  1961. Photon interference
  1962. Absolute Stillness?
  1963. Antisymmetry of final State Requiring L = 1
  1964. Non-Interacting Particles
  1965. Quantum entanglement, not that weird.
  1966. Quick complex numbers question in QM (probability amplitues)
  1967. Decoherence and measurement
  1968. Dirac equation for the conjugated field
  1969. The preferred basis problem - help
  1970. all possible energy levels
  1971. Formula for expectation value of raidous in Hydrogen atom
  1972. energy of hydrogen atoms
  1973. fields other than the photon field in the Casimir effect?
  1974. mass action law for semiconductors
  1975. is the Doppler effect for atomic spectra a purely realistic effect?
  1976. Planck and light particles
  1977. Objective collapse... almost...
  1978. Hall Effect
  1979. Massless theory
  1980. Particle or wave?
  1981. probability of finding particle in half of a box for a given state
  1982. Does anybody know if there are instances other than diffraction
  1983. Spherical harmonics and P operator
  1984. At what temperature do quantum effects become significant for a gas
  1985. Fundamental Quantum Probability
  1986. Molecular Vibration and Gas Temperature
  1987. Zero Commutators
  1988. matter wavelength and indeterminate of location and energy
  1989. Bell's Theorem references
  1990. Off-Diagonal Hamiltonian elements
  1991. Simple question: Do L^2 and r^2 commute?
  1992. Wave Collapse and Degenerate States - A Quick Question
  1993. Finite and infinitesimal Unitary transformations
  1994. Intuitive Analogy to describe QM
  1995. what is meant by schrodinger type equation?
  1996. spinors in various dimensions
  1997. Efimov 3-body theory experimentally proven
  1998. Maxwell Equations: Radiation requires acceleration?
  1999. Lost in Symmetry and Super Symmetry
  2000. Light spreading vs attraction
  2001. Theorem of quantum-mechanical version of Borromean rings finally proven
  2002. Pauli's spin Matrices
  2003. Electron in Atom
  2004. Why MWI cannot explain the Born rule
  2005. schrodinger eqn. b.c.
  2006. Probability function question
  2007. The Large Hadron Collider - Where is the particle?
  2008. Speed of free electrons in vacuum, plasma and superconductors?
  2009. Looking for audio lectures (no video/just audio)
  2010. Quantum Optics
  2011. Particles in the Palette
  2012. time reversal and magnetic order
  2013. Uncertainity Principle.
  2014. Why is wavefunction a lorentz scalar? So confused.. please help
  2015. Planck length and the speed of light
  2016. Singularity composed of gluons?
  2017. Playing with magnetic balls, and now I have a question...
  2018. dimension of the gamma matrices in general dimension
  2019. entanglement and the vacuum
  2020. Which of the four forces is responsible for degeneracy pressure?
  2021. Wave-Particle Duality
  2022. Lagrangian for spinor field, unbounded from below
  2023. Algebraic solution of hydrogenic atom
  2024. Maxwell propagator in Kaku's QFT book
  2025. gravity as a cancellation force
  2026. spatio-temporal shape and spectral distribution of pulse
  2027. question on irreducible versus reducible feynman graphs
  2028. Do our fingers ever touch electrons or nucleis?
  2029. Pole in wave packet amplitude
  2030. Perturbations on resonance
  2031. Vacuum Polarization as EM Wave.
  2032. Angular momentum and group representation
  2033. the ground state of a time-reversal invariant system must has zero momentum?
  2034. Do we need quantum-classical correspondence?
  2035. How can the properties of the same element differ
  2036. What does coherence mean?
  2037. transformations in vector space
  2038. simultaneous diagonalization
  2039. Taking picture in atto second? Yes we did.
  2040. A very quick question
  2041. One stupid question about Weinberg's Volume 1
  2042. Dirac Equation for interacting two particle
  2043. "Old" quantum mechanics
  2044. BM is incompatible with MUH
  2045. Eigen energies
  2046. Hypothetical entanglement question
  2047. Why Not a Time Operator?
  2048. What are the fundamental forces involved in the chemical reaction?
  2049. Repulsive Casimir Forces
  2050. setting c=h=1
  2051. a question on eigenstates and operators
  2052. potential energy in hydrogen atom
  2053. operator valued distribution
  2054. Paramagnetic term of the hamiltonian
  2055. Electron wave
  2056. New limit on lorentz invariance violation
  2057. Confusing integral in Zee's QFT
  2058. The reciprocal expectation value
  2059. Realizing the RD Experiment. Troubleshooting/bug fixing. Input is very welcome.
  2060. Analysis of time-dependent SE (infinite square potential)
  2061. Harmonic oscillator test function
  2062. Particle Movement
  2063. Is space continuous or discrete?
  2064. SHO propagator
  2065. Uncertainity question
  2066. physical interpretation of unitary transformation
  2067. Heisenberg Uncertainty Principle
  2068. Quantum Past
  2069. How does they check the number of atoms in BEC?
  2070. Can anyone tell me what is this formula??
  2071. Quantum mechanics
  2072. Thought experiment on entropy
  2073. Definitoon of trajectory in quantum physics, especially in path integrals
  2074. Expectation values calc.
  2075. pure mixed entangled confusion
  2076. Mistake in Ballentine's book?
  2077. does this commutator commute?
  2078. Operators
  2079. Real field and spinors?
  2080. Logical dilemma in Greene's The Fabric of the Cosmos?
  2081. Quantum electromagnetic interference
  2082. Quick Braket notation question
  2083. Pilot wave theory, fundamental forces
  2084. What is the so called "orthogonal operator basis"?
  2085. [HELP] routine to diagonalize a general complex matrix
  2086. The harmonic oscillator in terms of path integrals without dirac notation
  2087. Was the particle in a box analogy a recent one?
  2088. Elitzur-Vaidman bomb tester
  2089. Confused again by uncertainty relation
  2090. Electron spin and QED
  2091. The double slit experiment
  2092. Why would I travel as a wave?
  2093. why dont air molecules cause collapse
  2094. Quantum Mechanics basiscs (confused about wavefunctions)
  2095. New to QM - a few questions
  2096. Virtual Particles
  2097. Don't understand the significance of the WKB approximation
  2098. Interactions between real and virtual particles?
  2099. How can sending a massive chunk of carbon through the double-slit prove...
  2100. Second order approximation in time independent perturbaton theory
  2101. about susceptibility and atom population?
  2102. wavelength of matter at rest
  2103. What is the most basic form of information?
  2104. Evoluation Operators
  2105. Why can't their be zero-energy at the atomic scale
  2106. time ordered integrals
  2107. locality in the propagator
  2108. Ladder Operators acting upon N Ket
  2109. Question on the Collapse of the wave function?
  2110. Heuristic derivation of Schrodinger's equation for a layman
  2111. Why NO tachyons ??
  2112. wave function in an integral
  2113. Desintegration of particle into 2 fermions
  2114. biology and quantum mechanics
  2115. how to get the lineshape?
  2116. Weaknesses of Fock-Darwin model
  2117. Confusion on Meaning of Momentum
  2118. degenerate pertubation theory when the first order fails
  2119. Why use autoionizing states?
  2120. Angular momentum and Hamiltonian commutator
  2121. Wave-Particle Duality
  2122. Is it possible to capture (contain?) and electron?
  2123. quantum energy teleportation
  2124. Why do two particles hold themselves together in a vacuum?
  2125. Simple QFT question
  2126. i want a good refrence for su(2) and it's aplecation
  2127. What is meant by ths wave-particle duality of electrons?
  2128. Some explanation with spin qantum No
  2129. lie groups and angular momentum
  2130. The radius of an electron orbit in helium
  2131. Entanglement - the Latest Insights?
  2132. Why the De Raedt Local Realistic Computer Simulations are wrong
  2133. Local realism ruled out? (was: Photon entanglement and...)
  2134. Time As a Basis Vector
  2135. axes in 3-dimensional QM
  2136. Gauge fixing term
  2137. relaxation time and spatial width
  2138. Time Localization Same As Indeterminacy?
  2139. Schmidt decomposition
  2140. EPR reasoning
  2141. The size of a perturbation
  2142. Late-in-life self-education
  2143. QFT general properties operators
  2144. Some Explanation with Pauli's Spin Matrices
  2145. Parity Operator
  2146. Is the vacuum or void affected by gravity?
  2147. Spin 1/2 eigenfunctions
  2148. Faster than light communication w/ Quantum Entanglement (Bell's telephone)--Possible?
  2149. A Very Convincing Quantum Experiment?
  2150. Experiments for time-energy uncertainty relation
  2151. photo electric current
  2152. Is the electromagnetic field quantized?
  2153. tachyon question
  2154. Measurement effect upon wave function
  2155. distinguishing between two quantum states
  2156. What is the Clifford Group?
  2157. Driven quantum mechanical harmonic oscillator
  2158. Pauli Eqn from Dirac Eqn?
  2159. force to change momentum?
  2160. homogeneous and inhomogenous relaxation time
  2161. Solid state quantum entanglement?
  2162. odd question
  2163. Fermi energy of bare proton
  2164. difference between s-matrix and interactive field propagator?
  2165. attractive force between potential wells
  2166. Cosmic foam
  2167. interpreting quantum physics
  2168. HUP & Non conservation of energy
  2169. confusion about preparing ensemble of particles and no-cloning theorem
  2170. How to debunk a quantum mystic?
  2171. Quantum physics and equivalence principle
  2172. Compton Scattering formula for 180 degree scattering.
  2173. What is the hardest question to ask a quantum physicist?
  2174. Probability is square of amplitude or it's product with complex conjugate?
  2175. oscillator applications
  2176. Experimental realization of Stern-Gerlach SGy filter
  2177. On the many-worlds interpretation
  2178. symmetry and irreducible representation
  2179. what if Hamiltonian is not constant in time?
  2180. estimate ground state energy with HU
  2181. Heisenberg Uncertainty Principal
  2182. Quantum Tunneling, Coulomb Barriers and Fusion
  2183. Hydrogen Spectrum
  2184. Relational Quantum Mechanics Interpretation
  2185. Charge Conjugate Dirac Field
  2186. Information Loss in Photon Absorption?
  2187. Spin-1 operator identity
  2188. The Understanding of Particle-Wave Duality (Can it be fully understood?)
  2189. Spin of photon
  2190. Quantum mechanics - question about the system
  2191. Path integrals (Feynman and Hibbs) clarification
  2192. Collapse of wavefunction - how long it takes?
  2193. mass of the electron
  2194. what is a mass independent renormalization scheme
  2195. quantum mechanics
  2196. Angular momentum - integer or half-integer
  2197. software to compute quantum mechanical and thermodynamics properties of ions
  2198. Bhor's rule breaking "energy levels"
  2199. raising and lowering operators
  2200. boson/fermion
  2201. Products of observables
  2202. Virtual Particle
  2203. tunneling
  2204. low dimensional anticommutation example
  2205. Why does spin add?
  2206. -ih/2pi d/dx =P operator
  2207. reflection coefficient of step potential
  2208. Electron Screening in Atoms
  2209. Half integer spin
  2210. Introduction to Quantum Mechanics
  2211. Lamb and "The Photoelectric Effect Without Photons"
  2212. Operator in second quantization
  2213. Please point me to more info about these Feynman statements
  2214. Photoelectric effect
  2215. Quantifying the unQuantifyable?
  2216. Thermodynamic Evidence for Water as a Quantum Mechanical Liquid
  2217. Fourier Transform of a productof Green functions
  2218. imagination of wave function
  2219. Mass of field for small fluctuations
  2220. Research Problem -- 4-body Decay
  2221. Is it possible for photons to dissappear in vacuum.
  2222. quantum physics
  2223. Superposition of the solutions of the Shrodinger equation
  2224. Lorentz-Transforming a Newton-Wigner State
  2225. What is responsible for quantization?
  2226. Photons entering a medium
  2227. What exactly is the Sigma-ket-bra?
  2228. Quantum theory question
  2229. Position-Space Correlators
  2230. question on tensor product
  2231. Does this experiment demonstrate that conscoiusness causes collapse?
  2232. Meaning of velocity in Bohm interpretation
  2233. Help regarding normalization of wave functions
  2234. Harmonic oscillator in matrix form
  2235. How does the hermiticity of Hamiltonian restrict its Lagrangian?
  2236. question about Landau level
  2237. quantum mechanics hydrogen atom
  2238. Weinberg, QTF, pg 60:very specific question
  2239. Why do QM particles with l<S vanish in a classical radiation field?
  2240. De Broglie
  2241. Looking for a basis for C^2
  2242. Why don't objects blend?
  2243. Wave Packet Spreading and the 2nd Law
  2244. suggestion about research object(quantum mechanics)
  2245. Retrocausality solves QM problems??
  2246. Double Slit Experiment and Measurements
  2247. Static Electric Fields / virtual photons / Ionization
  2248. Particle Spin Question!
  2249. degeneracy
  2250. Photon and its antiparticle
  2251. Urgent Help Wikipedia Is Confusing On Compton Derivation
  2252. exponential of creation/annihilation operators
  2253. Momentum eigenfunction question
  2254. Electrons, holes and positrons
  2255. A glance beyond the quantum model
  2256. Solution for Dirac equation with zero mass.
  2257. quantum mechanics at a biological macro level
  2258. The Road to Quantum Gravity.
  2259. Canonical Quantization
  2260. Are all quadratic terms in gauge fields necessarily mass terms?
  2261. FTL Quantum Entanglement
  2262. karnaugh map using 74ls ic's
  2263. What is photon wavelength?!!!
  2264. karnaugh map
  2265. Antiunitary time reversal operator
  2266. Quantum spreading of polarization
  2267. group velocity
  2268. Non-spatial resolution of quanta (split off from "Local realism ruled out?")
  2269. What's algebraic approach to QM good for?
  2270. Possible similarity between Classical and Quantum photon definition
  2271. What are quantum numbers?
  2272. Epr
  2273. Electron Diffraction ?
  2274. Eigenvalue of the coherent state
  2275. ket derivatives
  2276. Need of Wave Packet
  2277. Quanta and the conservation of energy
  2278. Concerning Quantum computers and information
  2279. Quantum Teleportation of Energy
  2280. Is energy of a free particle observable?
  2281. Scattering problem
  2282. Bell inequality
  2283. Decoherence and Entanglement
  2284. ensemble of QM interpretation
  2285. Photon and the field generated by an accelerated charge
  2286. Solving 1 electron atom Schrodinger Equation in rectangular coordinates?
  2287. Application of quantum mechanics
  2288. Basic question on Zee-QFT in a nutshell
  2289. Two qubits out of how many?
  2290. New light to electricity conversion
  2291. Equipment for Quantum eraser experiment
  2292. Absolute Time vs Relative Time
  2293. Singlet and Triplet Spin States
  2294. What Is Schrodigner Wave Equation & Its App. To One Dimensional Harmonic Oscillator?
  2295. Uncertainty relations aren't Lorentz covariant
  2296. Spacetime entanglement
  2297. Dispersion relation and Photonic Energy and Momentum Equations in QM
  2298. Time derivative of momentum expectation?
  2299. The Density of Entangled Links?
  2300. Photons from separated sources can be entangled - after they were detected!
  2301. Why doesn't Hydrogen have the same wave functions as Helium
  2302. Superposition and Coherence in quantum physics
  2303. does the photon wavelenght come back to original when one path is "blocked"?
  2304. Nature of probabilistic measurement
  2305. Hypothesizing on photon mode of travel in double slit or similar experimental setups
  2306. If light is a wave then how can it be formed into a laser?
  2307. Spin states of the addition of 2 spin 1/2 particles
  2308. Distinguishability and entanglement
  2309. Electric dipole moment
  2310. Text book mistake?
  2311. Step potential
  2312. Second quantization
  2313. Photon off a mirror ?
  2314. unitary operation
  2315. Srednicki QFT chapter 8 question
  2316. Why is quantum spacetime necessarily random?
  2317. adding spin components on different axes... x+x=Z?
  2318. Einstein's theory on photoelectric effect
  2319. probablity density of 1s in hydrogen atom
  2320. Many Worlds and the arrow of time
  2321. wave function
  2322. Raising and Lowering Indices
  2323. Hermite but not observable
  2324. quantum mechanics
  2325. Notation relating to gamma matrices
  2326. single photon double slit experiment: why they don't get absorbed in the separation?
  2327. Double-Slit Experiment vs Identical Particles
  2328. Lippmann-Schwinger Equation
  2329. Transforming a Hamiltonian
  2330. Weyl spinors
  2331. A question related with propagators in position space
  2332. Schrödinger's cat
  2333. Hi, I keep confusing myself between decoherence and the transition from pure to mixed
  2334. Vacuum fluctuations and matter
  2335. Writing a matrix as an outer product expansion.
  2336. Antisymmetric wavefunctions for more than two particles
  2337. Degeneracy and Symmetrization Requirement
  2338. Radiation gauge
  2339. Gravitational force on observed particle?
  2340. Differential Geometry and Quantum Mechanics
  2341. differentiating a 'vector'
  2342. Rectangular Potential well if hbar --> 0
  2343. Dirac equation for many particles system
  2344. Error in book?! (derivation of quantum well)
  2345. [Req]Help finding equation
  2346. Feynman propagator on the cylinder - position space representation
  2347. Probabilistics of Quantum Physics
  2348. Probability Density
  2349. Uncertainty principle consist with energy conservation?
  2350. Uncertainty principle on P and E exchange
  2351. Beta function in Euclidean and Minkowskian QFT
  2352. Information, physics, quantum: The search for links article. J.A. Wheeler, 1990
  2353. Free particles in second quantization
  2354. Am I understanding superposition correctly? Is it equivalent to "all-potential"?
  2355. Tensor product of vector spaces: confusion...
  2356. Transformations
  2357. Symmetry factors (Srednicki ch9)
  2358. Time noninvariance in quantum physics
  2359. Normalized wave function
  2360. plotting the probability function for an atom
  2361. Quantum Tunneling math and Schrodinger's Equation
  2362. Behaviour of electron as wave and Particle
  2363. Ladder Operator
  2364. Magnitude of the scattering ampliudes in QFT
  2365. Laymans question about observational effect
  2366. Hawking Radiation
  2367. Finite Square Barrier
  2368. radiation from free electron with small acceleration
  2369. Why is wavefunction complex-valued?
  2370. Does a laser have a recoil
  2371. psi-collapse in nature
  2372. Bell's theorem: Local realism v. counterfactual determinism
  2373. gravity
  2374. Entanglement and Concurrence: asking for definitions
  2375. Questions re Cramer's Transactional Interpretation?
  2376. Showing that commutator is invariant under orthchronous LTs
  2377. Orthochronous Lorentz Transformations
  2378. What is the hardware for quantum gates?
  2379. Hydrogen spin-orbit interaction
  2380. Oscillation frequency of probability density P(x,t)
  2381. shankar "PQM" is wrong?
  2382. Sommerfeld quantisation:relation between energy and potential
  2383. Schrodinger's equation
  2384. Representations and change of basis
  2385. Srednicki P67
  2386. Quantum Tunneling Probability for a rectangular barrier
  2387. Equivalent of HUP for spins?
  2388. Energy Uncertainty Less For High-Energy Particles?
  2389. Pertubation Theory
  2390. S-Matrix in non-relativistic limit
  2391. looking for literature on Polarization Entaglement
  2392. Bound states of Yukawa potential
  2393. Quantum Immortality
  2394. Acceleration Operator
  2395. Solving radial wavefunction in odd central potential
  2396. How to understand braket two state?
  2397. Quantum entanglement ????
  2398. protons
  2399. Photon absorption via changing EM field
  2400. Integral involving exponentials and the Time ordering operator
  2401. Electrodynamics question and maybe quantum/classical misunderstanding
  2402. The expectation of an expection (relating to Wick's Theorem)
  2403. Spin of system of n particles
  2404. Spinors and the Bloch sphere
  2405. Normalization condition
  2406. Planck's assumption and Uncertainty principle
  2407. Equation 2.16 in Srednicki
  2408. Applying Wick's Theorem
  2409. Symmetry factors in Feyman Diagrams
  2410. s-orbitals, angular momentum and Heisenberg uncertainty
  2411. Black Hole Evaporation
  2412. Riemann surface of four closed string interaction (Zwiebach section26.5)
  2413. Local density of number of photons
  2414. Waveform produced by an atomic transition
  2415. Instantanious Communication possible?
  2416. Srednicki 2.17. How does metric act on Levi Cevita symbol?
  2417. dimensionless equation schrodinger with field magnetic
  2418. Deutsch's problem
  2419. Can we do double slit experiment using quasiparticles?
  2420. Proton vs Proton interaction
  2421. Bell's Theorem
  2422. causality in quantum mechanics and relativity
  2423. unitarity in field theory
  2424. Double slit experiment, observer effect
  2425. Normalised states
  2426. Energy of measurement
  2427. 2d Wavepacket in relativistic QM
  2428. Central charge and Lorentz Algebra
  2429. Uncertainty question
  2430. SU(2) symmetric/antisymmetric combination using young tableaux
  2431. How Do Photons Carry Electromagnetic Force?
  2432. Why is superposition prinple a first principle in QM
  2433. Simple bound state
  2434. BEC and quantum gravity
  2435. Srednicki equation 7.7
  2436. Why take FINITE time for an electron to observe a photon?
  2437. Wave equations and Schrodinger's equation
  2438. What's the (Electron) Frequency, Kenneth?
  2439. Electrons settling into a lower energy state: How long does the light stay on for?
  2440. loop corrections to the propagator
  2441. Orbital angular momentum
  2442. Coordinate transformation and conformal transformation?
  2443. What does "not normalizable" ential
  2444. Phase shifts in scattering
  2445. Quantum Entanglement - electron spins
  2446. Why is counterm included in both orders of correction in Srednicki chapter 14
  2447. Quantum information/symmetry/group theory.
  2448. Feynman rules (vertecies) for graviton
  2449. Two electrons in a potential well
  2450. Why do particles travel along smooth paths in quantum mechanics?
  2451. Degenrate fermi gas
  2452. Average energy of atoms in the Stern–Gerlach experiment
  2453. Uncertainty Principle and Fourier Transform
  2454. QM and helium superfluid...
  2455. two electrons?
  2456. Difference between a classical and quantum field theory?
  2457. Matrix Element
  2458. No info transferred means SR and Entanglement do not conflict
  2459. Quantum Physics and Black holes
  2460. particle physics and quantum physics....
  2461. Death and Energy
  2462. Point symmetry group matrix representations
  2463. Quantum teleportation implications
  2464. Quantization of E/M field
  2465. Atom orbitals
  2466. Dipole molecule
  2467. Galilean Algebra in the low velocity limit of Poincare Algebra (Weinberg vol 1)
  2468. What happens to Entangled Photons after a polarizing beamsplitter (PBS)?
  2469. Perturbations to all orders (Srednicki ch19)
  2470. Pseudospectral method vs spectral method
  2471. Creation operator
  2472. Expected value of momentum
  2473. Question about Ising Model
  2474. Perturbation Theory Formulas
  2475. notation question: partial derivative with arrow
  2476. Black Body Radiation
  2477. decoherence
  2478. mesocopic cat states
  2479. Direct Product
  2480. Superrenormalizable phi cubed theory
  2481. Definition of time-ordered product for Dirac spinors
  2482. A Quantum Mechanical model of measurement
  2483. Matrix Elements
  2484. Stern–Gerlach experiment !
  2485. Confused in Chapter 3 of RF's QED
  2486. double slit electron experiment inquiry
  2487. Grassman numbers
  2488. Are point-particles "real"?
  2489. Term symbols
  2490. Most basic double slit experiment question
  2491. LASER effect
  2492. Angular momentum (L) in z-axis of hydroxyl radical
  2493. spin and current
  2494. Langer's modification
  2495. Hidden variables, Bell's theorem, etc
  2496. Entanglement (Concurrence and Schmidt number)
  2497. Is this an accurate explainantion of QM?
  2498. On-shell renormalization (Srednicki ch31)
  2499. Do physicists agree that unified field exists ?
  2500. Understanding Ladder Operators
  2501. Invariance of Pauli-matrices under rotation
  2502. Orbitals (hydrogen)
  2503. Splitting a light wave
  2504. Wiki Helium Article mistake?
  2505. linear algebra and QM
  2506. Expectation Values and Operators
  2507. Why do we assume that zero point energy is infinite?
  2508. Momentum transfer between two entangled particles?
  2509. Significance of Commutation Relations
  2510. Srednicki CH20
  2511. inner product of Hilbert space functions
  2512. Exchange Operators & Spin Statistics - I don't the conclusions
  2513. Is it possible to violate conservation of energy in quantum?
  2514. bound states in QFT
  2515. quantum mechanics
  2516. bohmienne quantum gravity
  2517. Confused about Shared Eigenstates
  2518. Hydrogen
  2519. p orbitals and single electron atoms
  2520. What is a useful way to talk about eigenstates of the position operator
  2521. Coulomb wave functions
  2522. Polarization of individual photons.
  2523. Conservation of Energy and Mass in QM
  2524. Micron sized object observed in quantum state
  2525. Schrödinger local and deterministic?
  2526. Spin in QFT
  2527. Evolution of uniformly accelerated system
  2528. Entanglement
  2529. Radiation of accelerated charge and QFT
  2530. photon as is understood today
  2531. Quantum Computation & Quantum Information
  2532. LS coupling for identical electrons
  2533. Background
  2534. Wigners Friend.. where is the paradox?
  2535. Quantum entanglement
  2536. Number of protons and neutrons per shell?
  2537. how to reduce fermi-dirac to maxwell-boltzmann in a solid?
  2538. Does QM break down at large scales?
  2539. What are the states in QFT?
  2540. Question on Expectation
  2541. radiowaves to light
  2542. Beta functions and the energy-momentum tensor
  2543. Toffoli gate evolution
  2544. if Aop commutes with H, A is a constant of motion - prove
  2545. Wave particle duality
  2546. Schrodinger's wave equation
  2547. Weinberg: The Quantum Theory of Fields I, Eq. 2.5.14
  2548. Srednicki equation 5.10
  2549. does different observer affect double slit particle experiment
  2550. Tunneling / Transmission Through a potential barrier that is infinitely high and thin
  2551. What properties determine whether one variable can be fourier-transformed into anothe
  2552. SVD and Schmidt?
  2553. Double Slit Experiment Questions: Detectors
  2554. QM uncertainties / probabilities and light
  2555. How is the Coulomb force transmitted?
  2556. Heisenberg's & Schrodinger's Picture
  2557. Gravitons and Inertia
  2558. Can Light Travel Faster Than Speed of Light
  2559. Probability current density
  2560. Scalar Field Quantization
  2561. macroscopic tunneling
  2562. Correspondence betw. Hamilton-Jacobi & Schrödinger eqns.
  2563. 3-D Infinite Potential Well
  2564. Finite Square-well potential
  2565. Quantum harmonic oscillator 1d
  2566. Gravitation of heavy particles
  2567. Unruh radiation
  2568. Story of Operators Creation/Anihilation
  2569. Light wave/particle duality resolution
  2570. Photon/wave/particle
  2571. Finite Coulomb solutions
  2572. Momentum of light
  2573. Seperation of variables in the Schrodinger equation
  2574. Quantum Harmonic Oscillator Operator Commution
  2575. differentials, pseudo-differentials, and locality
  2576. Could quantum teleportation be used to teleport humans?
  2577. What must Psi be continuous?
  2578. Is light a physical item ?
  2579. Quantum physics
  2580. Stern–Gerlach experiment with photons?
  2581. Quantum physics (photons)
  2582. Quantum Field Theory -- variational principle
  2583. "physical" degrees of freedom
  2584. weird probabilities
  2585. Quasicrystal growth
  2586. discrete space
  2587. Electron in the orbit
  2588. einstein podolsky rosen bridge
  2589. do spin up electrons travel towards north or south on magnet in stern gerlach expt?
  2590. Minimising for Lambda; Differentiation?
  2591. Shankar CH1 Derivative of Dirac delta
  2592. Description of Wave Function Collapse
  2593. A plane wave vs the bound state of Hydrogen atom: orthogonal?
  2594. Teleportation: Scientific research
  2595. quantum mechanical measurement (schrodinger's cat)-
  2596. Inspection of the Density Matrix
  2597. measurement problem in double slit experiment
  2598. Mass moving through Space/Time = Gravity?
  2599. proof in heisenbergs uncertainty relation involving bra-ket
  2600. Bound state in a weakly attractive potentials in 1-D
  2601. Dark photons?
  2602. statistical mechanics of antiparticles
  2603. Expected value of the spin tensor operator
  2604. Gluons?
  2605. What is colorforce?
  2606. Courses for Quantum Information Theory
  2607. Stationary states for even parity potential
  2608. Why is the singlet configuration anti-symmetric?
  2609. A quantity from schrodinger
  2610. CP-volation -> violation of 2nd law of thermodynamics?
  2611. Semi-classical quantum/Poisson Brackets
  2612. Photosynthesis
  2613. Building Up Principle & Fine Splitting
  2614. normal frequencies of vibration of a molecule
  2615. Enforced symmetry in multi-electron problems
  2616. Help with Electron-configuration
  2617. Is spin-2 a tensor?
  2618. What is Hamiltonian action?
  2619. Entanglement correlations, singlet spin state
  2620. Billiard Ball Hamiltonian
  2621. how to count on-shell DoF of a gauge theory?
  2622. What can you talk about quantum mechanics?
  2623. Phase space volume
  2624. why these four 2p orbital electrons have higher energy state configuration?
  2625. How does one type of detector determine path of photon?
  2626. schrodinger solution to hamilton-jacobi
  2627. Proof of validity of QM on the macro scale
  2628. Interpretation of Propagator
  2629. Theoretically Destroying a Black Hole
  2630. problem with complex conjugates and the Time Independent Schrodinger equation
  2631. Observer types to make the wavefunction collapse.
  2632. QFT textbook where Schwinger effect is described
  2633. Freaky Physics Proves Parallel Universes Exist
  2634. Relevance of supersymmetric quantum mechanics?
  2635. Unitary Operator on a Tensor Product
  2636. QM Shankar -Principles of Quantum Mechanics
  2637. ground state of ortho-helium?
  2638. warping spacetime, parrallel universes
  2639. point-like particles, form factors
  2640. MWI, EPR and Deutsch
  2641. Proving Interaction picture field satisfies KG eqn
  2642. The double slit
  2643. Free Field Vacuum
  2644. Spherically symmetric potential and spherical harmonics
  2645. Turing Machine
  2646. A brief question
  2647. Trouble understanding matter as waves
  2648. Identical Fermions in an infinite square well
  2649. mind experiment
  2650. Density matrix question
  2651. Article says slow light caused by absorption/re-emission?
  2652. Transferring bits using the square well
  2653. Quantum mechanical coupling/excitation
  2654. Atomic Electromagnetic Forces
  2655. Concervation of Momentum and Non-Classical Paths
  2656. The state of magnetism and its possible correlation to gravity...
  2657. similarity between electron tunneling and propagation of electromagnetic waveguides
  2658. Renormalization of Logarithmic divergences
  2659. Functional determinants and gauge invariance
  2660. Help Layman Understand EM Wave Propagation
  2661. What good resources are there to learn about physics
  2662. What prevents quantum fluctuations from resulting in new universes?
  2663. Uncertainity Principle
  2664. measuring momentum in a square well
  2665. question on negative temperature
  2666. Theoretical Quantum Entanglement Question
  2667. i have a few questions
  2668. stupid quantum question
  2669. compton scattering question
  2670. Wavelength of a proton
  2671. zero-point energy, dark energy and space
  2672. Two-slit experiment and "The Truth"
  2673. London- vs Josephson penetration depth
  2674. electron movement
  2675. When the electron prob wave spreads what happens to the electron?
  2676. Fermion-scalar interaction
  2677. Different representations of SU3 and resultant multiplets
  2678. Home Experiments?
  2679. Quantum Mechanics Equations
  2680. Position & Momentum
  2681. Working out total spin...?
  2682. Electron Transitions: Superposition of States
  2683. Particle in a box with one finite wall and one infinite wall
  2684. RG equation for QED
  2685. Angular Momentum
  2686. Feynman Path Integral's Meaning
  2687. Quantum Chemistry
  2688. Is action at a distance possible as envisaged by the EPR Paradox.
  2689. Effect for time lag in quantum erasure?
  2690. Question about the experimental behavior of entangled particles.
  2691. form of the spin 1 equation
  2692. deriving the Hamiltonian
  2693. Does Hydrogen's one electron spin?
  2694. How does a photon carry force?
  2695. Measuring Light as a wave
  2696. 2 electrons in box, "hard" walls, total energy E.
  2697. Probability Density or Expectation Value?
  2698. Research of Entanglement
  2699. Do spin and momentum commute?
  2700. When to use H when to use U(H)?
  2701. The wavelength of the virtual photons of the Coulomb force
  2702. Wave Function: Real vs Imaginary Part
  2703. Interpreting operators in second quantization
  2704. Smooth Quantum mechanics
  2705. Anderson Localization
  2706. Commutators on Maple
  2707. Interesting equivalent to Schrödinger equation
  2708. Propagators & Wick's theorem : a dummies question
  2709. Observation causing change in system
  2710. Vacuum Energy: same inside a rock?
  2711. Why is the vacuum normalised to 1?
  2712. Pair production bound states
  2713. scattering problem
  2714. quantum waves have mass?
  2715. How to observe interference patterns with a simple experiment?
  2716. uniqeness of elemental particles
  2717. Classical limit of Quantum Optics
  2718. Special cases of the Schroedinger Eq?
  2719. gamma matrices and lorentz algebra
  2720. Understanding duality
  2721. Quantum mechanics ground state
  2722. Unit of plank constant in the calculation of tunneling probability
  2723. Stern-Gelarch Experiment
  2724. QFT question - anti-commutator
  2725. Levi Civita and commutators
  2726. Quantum Suicide Theory = Everyone Dies Of Old Age?
  2727. Phase velocities and photons
  2728. Experiment re quantum randomness
  2729. Spin in higher dimensions
  2730. What is the function of a "collapsed" wave?
  2731. Wavefunction Dimensionality
  2732. Eigenfunctions and Eigenvalues
  2733. operators
  2734. A few puzzling questions
  2735. Allowed energies for electrons in hydrogenic atoms
  2736. Is this an error in Srednicki?
  2737. Young experiment in gravity field
  2738. peskin 3.82
  2739. Radial probability density / quantum numbers.
  2740. Is 'The Secret Law of Attraction' considered quantum physics? Do you support it?
  2741. Schrodinger Time Dependent equation
  2742. Time dependence of energy & probability
  2743. Can someone please explain overlap integrals to me?
  2744. Electron energy increases with N?
  2745. Really basic quantum mechanics question
  2746. Normalisation
  2747. A question on counterterms
  2748. Zee QFT In a Nutshell Propagator Question
  2749. musings on penning traps and geonium atoms ....
  2750. Dirac's papers
  2751. Laplacian of 1/r in Darwin term
  2752. Calculating weights of Feynman Diagrams
  2753. Photon Helicity Projection Operator
  2754. Proof of trace of density matrix in pure/mixed states
  2755. Peskin Schroeder which chapter
  2756. Information and sphere’s interior versus surface… not.
  2757. Experiment for precognition
  2758. Poisson bracket
  2759. Time dependence of scalar product
  2760. SciAm's DIY Quantum Eraser: Not Real?
  2761. Spin |1/2,0>
  2762. Might be a basic question
  2763. Physicists capture first images of atomic spin
  2764. Experimental test of the Uncertainty principle
  2765. Seperation of variables, infinite cubic well
  2766. QFT - interaction between field
  2767. Photon Interaction W/ Silver Salts
  2768. Why does this integral go to zero?
  2769. origin of charge
  2770. Photon propogation
  2771. about the excited state of an electron
  2772. 6pz Orbitals visualization
  2773. what is uncertainty principle
  2774. Relativistic Uncertainty Principle
  2775. I'm just wondering, what causes the existence of quantum levels?
  2776. Time period measured in double slit experiment
  2777. Question about upper energy limits.
  2778. Lippmann-Schwinger equations
  2779. New look at Youngs experiment
  2780. Trying to Understand Bell's reasoning
  2781. Electron Cloud
  2782. Two selection rules I can't figure out
  2783. Question on Stern Gerlach experiment
  2784. quantum time?
  2785. Radiation by accelerating charge
  2786. How is an electron formed?
  2787. Feynman diagrams
  2788. Are quarks really in isocoles triangle positions?
  2789. Quantum Computation: extracting information from entangled state
  2790. Information erasure without an energy cost
  2791. Fermions with no mass, and helicity coupling.
  2792. Circularly Polarized Photons
  2793. Relativistic Mechanics of Hydrogen Like S Orbials at high Z
  2794. Schrodinger Equation
  2795. Old Copenhagen Interpretation
  2796. Squaring the delta function in QFT(Srendicki ch11)
  2797. Geometric Quantum Mechanics
  2798. Momentum in an Infinite Square Well
  2799. Effective Mass
  2800. Conduction Band Offset
  2801. Heisenberg uncertainty principle
  2802. Are Wave Functions Real?
  2803. Interpreting the probability distribution of the potential step
  2804. Dirac equation & Dirac matrices
  2805. recovering lagrangian from equations of motion
  2806. Quantum / gauge field -> Classical limit
  2807. Von Neumann entropy in terms of the tangle
  2808. Understanding the speed of light...
  2809. Do photons travel in straight lines?
  2810. Atom and the universe
  2811. Quantum Entanglement
  2812. Planck black body formula question
  2813. Why are there 2n^2 vacancies
  2814. Slit diffraction: time between emission and detection of photon
  2815. Eigenvalues of a reduced density matrix
  2816. Quantum optics, 2 qubit gates acting on 2 qubits - cannot be factorized??
  2817. compton scattering
  2818. Question about Pauli exclusion principle
  2819. angular momentum
  2820. can two photon emerage into one?
  2821. Do atoms behave as waves
  2822. wavefunction collapse and measurement
  2823. Interaction in QED
  2824. Associativity problem with observables
  2825. real meaning of stationary states
  2826. Express arbitrary operator in terms of x and p
  2827. Spinning probabilities
  2828. References or aids in learning QM?
  2829. Leggett - Garg Inequality
  2830. Bell's Inequalities and Double Dependencies on Hidden Variables
  2831. Quantum teleportation-is it real?
  2832. Very frist measurement device
  2833. Kronig-Penny model, how electrons get free of their atom?
  2834. Measurements of spin
  2835. Projector augmented wave method
  2836. anti-Bonding/Bonding Molecular Orbitals
  2837. Resources for information on Entropy
  2838. questions about phase velocity, and group velocity
  2839. Fermi's Golden Rule (Decay Amplitude)
  2840. Why do positive and negative charges attract?
  2841. An Idea I've been Thinking of...
  2842. Quantum Entanglement (A source saying QE exceeds the Speed of Light)
  2843. Can a computer be an observer?
  2844. Do black holes agree with the pauli exclusion?
  2845. Wilson Cloud Chamber and HUP
  2846. The delta function term in Klein Gordon propagator
  2847. curved reflective surface
  2848. Can Quantum Physics be weaponized?
  2849. Charge and uncertainty
  2850. Dirac equation in curvilinear coordinates
  2851. The action principle in quantum theory
  2852. Correlation functions vs. Scattering Amplitude
  2853. why does neutral fluorine so reactive?
  2854. Visualization of electron spin
  2855. Who is puzzled by the delayed choice?
  2856. Srednicki CH26
  2857. Particle Spin, Isospin, weak Isospin
  2858. Question on degeneracy
  2859. Normalization of wave function .
  2860. Photons and randomness
  2861. Photoelectric effect, discrete values of the tangent
  2862. compton scattering. help me!
  2863. How Much Radiation is Harmful?
  2864. Heisenberg Uncertainty Principle - Why Is It Real?
  2865. What would happen if the uncertainty principle was false?
  2866. What is is the 'scale'
  2867. OMG another Virtual Particle question. Runnnn
  2868. Joy Christian's disproof of Bell
  2869. Skyrmions
  2870. Basic conceptual/intuitive question on molecular vibrations and rotations.
  2871. Bell States
  2872. Dual Light Sources in Dual-Slit Experiment?
  2873. What is JOST function ?
  2874. Triangular molecule
  2875. Visualization of entanglement when relative speeds differ greatly
  2876. Couple of questions about renormalization schemes (based largely on Srednicki CH27)
  2877. residual Coulomb interaction
  2878. Evolving Causality
  2879. What is a probability amplitude?
  2880. Is the particle able to penetrate finite barrier?
  2881. Ionization by magnetization
  2882. is the hamiltonian in the coordinate representation always diagonal?
  2883. Can information be transfered via entaglement?
  2884. Can photons interact?
  2885. Probability density versus radial distribution function
  2886. light and matter interaction
  2887. Computation of the effective action (Peskin 11.4)
  2888. Repulsive Casimir Forces
  2889. Quantum Computing
  2890. Explanation of entropy only takes into account positions?
  2891. Normalization of continuum states (Yukawa ptl)
  2892. Why not sharp positions?
  2893. Vibrational Vs dissociation energies for diatomic molecules
  2894. Unstoppable Force, Immovable Object
  2895. Path integrals and supposed sum over paths
  2896. Amplitude for photon speed
  2897. Wilsonian EFTs and regularization
  2898. Thermal state in QFT
  2899. Specular reflection
  2900. Gravitationally amplified quantum fluctuations
  2901. Quantum Immortality
  2902. Does the graviton move at the speed of light in any reference frame?
  2903. Entanglement possible through a higher dimension.
  2904. Matrix or differential operator?
  2905. the misterious 'inverted' harmonic oscillator
  2906. Need help with understanding an idea
  2907. Projector Question
  2908. how does a wave function collapse?
  2909. entanglement and communication speed
  2910. Chiral Perturbation Theory
  2911. Hartree ansatz method
  2912. Quantum Fluctuations and Curved Space
  2913. Instant Data Travel??
  2914. Spin wavefunction confusion
  2915. Uncertainty Principle as impossibility of simultaneity
  2916. What do Bosons travel through?
  2917. Could heat in motors be minimized when driven with quasiparticles?
  2918. Measuring Momentum
  2919. Why is h-bar rather than h used in Planck units?
  2920. Quantum mechanics momentum operator
  2921. Delayed Choice Experiment - A thought.
  2922. Domains for relativity vs quantum mechanics
  2923. Wave-Particle Duality (explained?)
  2924. Dirac equation for proton/neutron
  2925. What is a wave function and its collapse?
  2926. Toy model, contextual particles/non-contextual ensemble
  2927. Slit interference pattern depends or whether there is a clock in the room?
  2928. A wave that can only be detected in one location
  2929. Paradoxes
  2930. About Feynman diagrams
  2931. Is a photon in the form of a wave or a beam?
  2932. Since the universe is expanding does this mean Quantum Particles are expanding too?
  2933. mcd to microeinstein
  2934. light interferometry as described in Thorne's "black holes and time warps"?
  2935. dimensional analysis of the london penetration depth
  2936. perturbation theory and total derivatives
  2937. Hund's rule and angular momentum coupling
  2938. Conjugate momentum in the hamiltonian
  2939. "Prior interaction" as an unwarranted assumption of EPR
  2940. Rest Energy
  2941. Dirac matricies
  2942. Clarifying the rules of Reflection
  2943. Photon divergence.
  2944. Heisenberg versus Maxwell?
  2945. the 'i' in the momentum operator
  2946. Fascination with Spin
  2947. Is intregral particle number a theoretical assumption?
  2948. formula for a spin S in a SGE
  2949. Hamiltonian of spin 1/2 in tangential magnetic field
  2950. Wave nature of the electron
  2951. There is no such thing as 'collapse of the wavefunction' - Feynman
  2952. L² Hilbert space, bound states, asymptotics of wave functions
  2953. N-point Green's function in QFT
  2954. Hydrogen Spectral Series Question
  2955. variation in field
  2956. Quantum Entanglement: What would happen if...
  2957. Understanding Bell's mathematics
  2958. QND and Ramsey zones
  2959. Bra-Ket operation
  2960. Entering a superposition
  2961. Thermal state in QM
  2962. Ramsauer townsend effect
  2963. General method for solving SE
  2964. Nonconservation of axial charge
  2965. The Basic premises behind quantum mechanics
  2966. About Photon as an independent entity
  2967. can a Hamiltonian be unbounded ?
  2968. Fermion annihilation operators from position and momentum
  2969. Bohr Sommerfeld quantization rules
  2970. Hilbert Space....
  2971. Ehrenfest's Theorem
  2972. Help understanding momentum
  2973. appearance of new information: mirror of collapse?
  2974. Wilsonian effective field theory
  2975. Probability Current Density
  2976. Second route to a relativistic quantum theory
  2977. Sending information via quantum entanglement?
  2978. The energy of photon and reflectivity
  2979. Using the time evolution operator
  2980. Quick question on Quantum Entanglement
  2981. advanced integration techniques
  2982. chirality and Helicity
  2983. Why isn't the Pauli equation equivalent to the Schrodinger equation?
  2984. Probability of photons reflecting or refracting
  2985. Question of the behavior of particles in observation
  2986. QED and Multiple Photons
  2987. Using wave\particle duality to predict future event?
  2988. Spin
  2989. About uncertainty relationship
  2990. Field Lagrangians as systems with infinte degrees of freedom?
  2991. Question: eV level of orbiting electrons
  2992. Quantum Darwinism
  2993. Spin, let me make sure I have this straight
  2994. can virtual particles break the law that energy cannot be created or destroyed?
  2995. Why does the electron jump ?
  2996. Difference betweem Many Worlds and Consistent Histories?
  2997. lorentz invariance
  2998. Temporal Extension of Quantum Uncertainty (A Theoretical Quantum Fortune Teller)
  2999. magnetic vector potential - spin coupling
  3000. Can maxwell's EM theory explain the photoelectric effect?
  3001. more spin questions
  3002. Consistency of solutions using operators (Energy ladder)
  3003. Why does the wave function collapses in the same way?
  3004. 3rd order derivatives in the lagrangian
  3005. Integrating by parts in path integral (Zee)
  3006. hydrogen 2p doublet
  3007. Two Universities in China succeeded in quantum teleportation
  3008. Probable Position and Momentum
  3009. Photo-excitation and photo-ionization
  3010. Canonical vs. path integral quantization
  3011. What do the 4 spin states of two particles represent
  3012. MWI and Contacting Other Worlds
  3013. do you think the uncertainty principal will ever be solved
  3014. Does antimatter have a negative mass
  3015. Pauli exclusion principle: a Force or not?
  3016. gamma 5 dirac matrice
  3017. Feynman Diagram of a Coulombic Attraction?
  3018. details of the double-slit experiment?
  3019. overlapping divergences
  3020. Double slit experiment
  3021. Understanding Bell's logic
  3022. What would be the world be like if Plank's Constant is modified?
  3023. ¿Are conserved the spin and orbital parts of the angular momentum?
  3024. Bosons and the Pauli Exclusion Principle
  3025. quantum harmonic oscillator
  3026. What is "excursion" of a potential well?
  3027. about momentum eigenfunctions
  3028. Why is the magnetic flux quantum (fluxon) a boson?
  3029. Free Particle
  3030. Once upon a time.
  3031. Interpretations of QM
  3032. Do entangled electrons still turn 720 degrees?
  3033. Where does the classical limit begin?
  3034. Photon propogator = metric tensor?
  3035. Propagator and delta functions
  3036. Quantization and dynamical Zeta function
  3037. microcanonical ensemble, density operator
  3038. Stability of Electron/Nucleus; Heisenberg Unc.
  3039. Commutator Relations vs. Schrodinger Equation
  3040. Just another double slit question
  3041. de Broglie wavelengths and electron diffraction
  3042. Quantum Violation of Equivalency Principle
  3043. Einstein's formula for specific heat
  3044. Photon Creation and Light Generation
  3045. Force or work for electronic transition?
  3046. prerequisites 4 qm?
  3047. question on orthogonal eigenfunctions
  3048. Total mass in the universe = infinite (Dirac Sea calculation)
  3049. J-space calculations
  3050. VIP experiment explanation needed
  3051. Photons interfering with themselves-double slit experiment
  3052. the nature of the magnetic field.
  3053. Does Nature Like Gaussians?
  3054. Sidney Coleman's QFT Lectures
  3055. Is the constant c (or it's measurement) subject to the uncertainty principle?
  3056. Eigen Value and Eigen Function
  3057. Spread of Wave Function Under Potential
  3058. what happens when a photon hits and antiparticle?
  3059. Operators in denominators
  3060. rearranging the doulbe slit experiement?
  3061. decoherence
  3062. Planck and Einstein's theories.
  3063. Question about interference by observation (double slit exp.)
  3064. Is there really matter or just different ways for energy to interact?
  3065. Observer as a quantum object?
  3066. Temporal symmetry solves all quantum paradoxes?
  3067. Resolution in scattering experiments
  3068. Blackholes and entanglement
  3069. Truly Random?
  3070. Are particles diffraction patterns?
  3071. how is the berry's phase measured experimentally?
  3072. Question about spinor wavefunction
  3073. estimating size of loop integrals
  3074. "invariant" Lagrangian or action
  3075. Clebsch-Gordan Coefficients
  3076. boson coherence at high temperatures?
  3077. Re-evolution of wavefunction after collapse
  3078. quantum chaos
  3079. On Angular Momentum
  3080. Is liquid helium composed of both ortho and para-helium?
  3081. MWI and Born Rule
  3082. Double Slit Experiment & Relativistic Simultaneity
  3083. List of Electron Double Slit Experiments?
  3084. renormalizing the propagator
  3085. any good reference on quantum-classical correspondence?
  3086. Perturbation theory and spin
  3087. Superposition-airy disc-snell's law-qbits.
  3088. Visscher's method for 2d numerical solution of Schroedingers eqn.
  3089. Ask for exact solution of Hubbard model
  3090. If virtual particles can appear, can real particles disappear?
  3091. Is Quantum Teleportation possible without a classical channel?
  3092. What is phase from a QM standpoint?
  3093. Requirements for LR model -- please explain.
  3094. MWI and special relativity
  3095. Veliocity in QM
  3096. important
  3097. Quantum Entanglement in Time
  3098. Stationary States and Spreading of Wave Function
  3099. "Vacuum Catastrophe"
  3100. quantum wave function
  3101. Variation of simple Lagrangian
  3102. Wave packet moving in a magnetic field
  3103. Bell's mathematical error?
  3104. Wave-partical duality and Huygens–Fresnel principle
  3105. quantum logic and hypercomplex numbers
  3106. What happens when light is brought to an absolute stop?
  3107. a layman's question on LQG
  3108. Displacement operator for coherent states?
  3109. What is mass?
  3110. Why is indeterminism assummed "popular"?
  3111. Is fractional orbital momentum theoretically possible?
  3112. What is Ad in a proof?
  3113. What is the difference between Spectrum and Density of states?
  3114. Why particle in a box is considered as 1-dimensional ?
  3115. Problem with anticommutation of spinors
  3116. Second quantization operators
  3117. von Neumann entropy
  3118. Extracting an answer from a quantum computer
  3119. How widely accepted is Bell?
  3120. photon spin ?
  3121. Smaller than Planck length?
  3122. QFT Counter Terms example calculation?
  3123. Physical quantity name?
  3124. Observational data and wavefunction collapse
  3125. Spin 1 particle, spinor state
  3126. ZPE Resonance?
  3127. particle-wave duality of sound waves
  3128. Trace of the fundamental commutation relation
  3129. Why is the graviton non-renormalizable?
  3130. Commutativity of frequency measurement
  3131. discrete vs continuous eigenvalues
  3132. cheap spontaneous parametric down-conversion?
  3133. photon
  3134. Phase, Geodesics, and Space-Time Curvature
  3135. The stability of the hydrogen atom
  3136. particle and wave
  3137. Any observable difference between two ensembles described by a same density matrix.
  3138. dBB for momentum
  3139. why two s=1/2 states can be linked by a rotation, but not two s=1 states?
  3140. QM vs. the second law of thermodynamics
  3141. The old problem of the virtual particles
  3142. max # of electrons in an orbit
  3143. Concerning Planck's quantum theory
  3144. double slit experiment
  3145. momentum vs angular momentum
  3146. Do electrons really spin?
  3147. anyone solved eigenstates in the field of a magnetic monopole?
  3148. Norm Ordering for a many electron system
  3149. What happens if we use two lasers for interference?
  3150. The Nature of Photons
  3151. Double slit experiment with detectors not recording
  3152. a question about the square well
  3153. Absorbtion/Emission
  3154. New crack in QED?
  3155. Spin Rotation
  3156. Standard Model Completely Wrong
  3157. Are de Broglie's waves and wave functions practically the same thing?
  3158. Superconductivity and Pauli exclusion principle
  3159. Absorption (without energy level transition).
  3160. Linear Harmonic Oscillator
  3161. Canonical Quantization of KG field
  3162. Orthonormal Energy Eigenstates
  3163. how to perceive probability value in QM?
  3164. What is Ground State of SHO?
  3165. dBB and radioactive decay times
  3166. Do photons have mass?
  3167. Quantum Computing and Entanglement
  3168. Breaking the speed of light - It's been done, twice!
  3169. Diagonalizing Spin Hamiltonian
  3170. Is it all TIME, and not amplitude?
  3171. No prediction ever been wrong ?
  3172. Quantum Enigma
  3173. Shrodingers cat. Observer
  3174. Bose-Einstein-Condensate ground state energy E_0 = 0
  3175. clarification of observation
  3176. Sum of two orbital angular momenta
  3177. basics of interacting fields
  3178. why so(3) is not isomorphic to su(2)?
  3179. Uncertainty principle
  3180. bizarre results of 1-dimensional delta-function potential well
  3181. Delta well + infinite barrier -> bound state
  3182. DOS confusion
  3183. justification of a common calculation
  3184. Elementary Questions
  3185. Speed of Light
  3186. Relation between Lie Algebras and Gauge Groups
  3187. about the significance of commutivity
  3188. Tensor Product
  3189. decoherence by macroscopic interaction
  3190. collision of two particles
  3191. Associated Laguerre Polynomial
  3192. electron remain as particle in atoms?
  3193. measurement problem
  3194. Duality
  3195. Implicate order and explicate order ...
  3196. velocity in quantum mechanics
  3197. Is Hamiltonian operator a Hermitian operator?
  3198. physical interpretation of operators in QM?
  3199. How does a quantum harmonic oscillator oscillate?
  3200. Vaccum and Wick theroem in AQFT
  3201. Entanglement and the Holographic principle
  3202. The Path Integral
  3203. Molecular bonding theory
  3204. Franck-Hertz experiment
  3205. Time dependent perturbation theory for density matrix
  3206. Doubt about quark-antiquark interaction.
  3207. Is Charge Due To Spin?
  3208. planck wavelength?
  3209. Orbital Spin Distribution
  3210. Wavefunction squared is Prob. Density?
  3211. Do many photons interfere with them selves or each other?
  3212. Stadium Wave as Longitudinal Wave in Terms of Transmission
  3213. [QFT] Source function
  3214. trace of density of states
  3215. Looking for simple self energy calculations
  3216. Purely electric quantum tunneling fusion
  3217. Hydrogen atom confussion
  3218. what's the causal model for direction of curl of magnetic field lines?
  3219. How are Magnetic Fields described in Quantum Mechanics?
  3220. physical intrepretation of Sr.E.
  3221. about measuring angular momentum
  3222. full implications of bell's inequality
  3223. A Simple Proof Of Bell's Theorem
  3224. Blackbody radiation
  3225. Proof that gamma matrices form a complete basis
  3226. Probability current and it's meaning
  3227. Problem with source term in qft
  3228. Simultaneous diagonalisation of non-hermitian operator (Bloch theorem)
  3229. Dark Matter and the Uncertainty Principle
  3230. Ultraviolet Catastrophe
  3231. dimensional regularization
  3232. Thermal Field Theory Integration over the modes?
  3233. Heisenberg vs Schrodinger Picture
  3234. radiation pressure, momentum question.
  3235. Particle-Wave Duality Contention
  3236. Decoherence of the Universe as a whole
  3237. How does the Energy of a particle stay together?
  3238. Commuting operators
  3239. Wick contractions
  3240. Spin Coupling, Matrix Building
  3241. Force-Carrying Particles
  3242. Gravity as Fictitious Force
  3243. free particle normalization
  3244. energy loss in collision in oscillator
  3245. observed superposition states
  3246. Conditions for Quantum Theory
  3247. Qm and SR
  3248. Texts on Quantum Fields without Maxwell's Equations
  3249. contradiction
  3250. Triple-slit experiment tests the Born's rule
  3251. probability amplitude in Heisenberg e Schrodinger pictures
  3252. Is position not an observable of a photon?
  3253. Quantum Mechanics Born to be Linear?
  3254. How to detect nteraction between two massless particles?
  3255. spin flips
  3256. C, P, T discrete symmetries
  3257. Is Everything Predictable?
  3258. Double slit
  3259. Basic QED question
  3260. hamiltonian algebras
  3261. Irreps of SO(3)
  3262. 2 slit questions
  3263. Double slit interference destroyed by observer or by photons
  3264. Particle question.
  3265. Opinions on the veracity of Lanza's Biocentrism
  3266. Higher Point CFT Correlation Functions
  3267. representation of angular momentum matrix in Cartesian and spherical basis
  3268. Massive vector field from CG coefficients
  3269. identical particles, eigenstates, empirical or theoretical
  3270. Quantum entanglement in communications possible?
  3271. quantum free fall
  3272. Quantum accelerometer using Unruh effect (Jorma Louko)
  3273. About the definition of fidelity in a mixed state. in terms of density matrix?
  3274. Casimir effect
  3275. wave-particle
  3276. uncertainity-
  3277. Spooky Entanglement
  3278. Gluon Contribution to Baryon Mass
  3279. Schroedinger's Cat
  3280. Srednicki 9.25
  3281. How is quantum entanglement observed?
  3282. Chern Simons form: calculation
  3283. Red shift of light and expanding universe - Your help needed.
  3284. Is this Dirac Ket Bra correct?
  3285. How do nucleons pack differently than atoms?
  3286. Quantum level working of IR sensor....
  3287. Commutation relation of operators
  3288. Is Consciousness actually Information
  3289. Relation between mass and wavelength
  3290. Location and speed of the electron
  3291. EPR Telescope
  3292. Can anyone explain this term is antisymmetric in SU(3)
  3293. Do particles possess properties before we observe them?
  3294. Refraction
  3295. Basic understanding
  3296. what particle/wave carries electric/magnetic fields?
  3297. Integral for the free propagator
  3298. Quantum physics, randomness and its influence on the arrow of time
  3299. Ask for a formula correct or not?
  3300. residues in feynman diagrams
  3301. light
  3302. virtual vs real photons
  3303. What is the average force for this process
  3304. What exaclty is energy on a quantum level?
  3305. Why doesn't matter overlap?
  3306. Can two bodies exist in the same space-time position?
  3307. Angular Momentum eigenstates, and tensor products
  3308. Prove that 0=1 in quantum mechanics
  3309. Aharanov-Bohm question
  3310. Klein-Gordon propagator ill-defined?
  3311. Is Space Quantized?
  3312. Ehrenfest's Theorem
  3313. Do "infinite probabilities" hurt multiverse theories?
  3314. Propagator
  3315. hermitianity of gamma matrices
  3316. upper limit photon energy
  3317. Foundations of Relativistic QM
  3318. Proving that a propagator decays exponentially for spacelike separations
  3319. Photon properties question
  3320. monochromatic signal?
  3321. Various questions
  3322. How to prove that for any bound electronic state, < p > = 0
  3323. Why can't we use quantum bit entanglement for FTL information?
  3324. n-fermion space construction
  3325. Power Production
  3326. W. Pauli: The connection between spin and statistics
  3327. Probabilistic quantum world and deterministic macro world?
  3328. Question about time limits of time-dependent perturbation theory
  3329. Do wave probabilities violate the speed of light?
  3330. double slit measurement problem
  3331. Does anyone know the results of John Cramer retrocausality experiment
  3332. Are there any distributions different from Fermi-Dirac and Bose-Einstein distribution
  3333. What kind of question is it?
  3334. Pilot wave without non-locality
  3335. A Bell Theorem with no locality assumption?
  3336. Particle in a box
  3337. Quantum Tunneling for particles of equal energies but different masses
  3338. Hamiltonian
  3339. On the Self Energy Correction
  3340. Shroedinger Variation- What do you think?
  3341. Fine structure constant increase with energy?
  3342. Z(J) and W(J)
  3343. The Double-Slit Misconception?
  3344. How do you visualize the spin of electron in your head?
  3345. commutation relations of P and H
  3346. What is mechanism of Haldane Statistics
  3347. How *exactly* do you get the generators (1/2,1/2)
  3348. Understanding the uncertainty principle
  3349. Spin and direction of motion
  3350. self-reference for fields
  3351. How Do QM PDFs Converge?
  3352. Gravity and the Uncertainty Principle
  3353. Quantum SHO Wave Functions not Complex?
  3354. Distance and the HUP
  3355. Calculating expectation value
  3356. Spin
  3357. Density of States
  3358. Can a scalar potential induce and electronic transition?
  3359. Symmetry factor of diagrams
  3360. Particles as forces
  3361. Do electrons lose mass due to revolving around nucleon?
  3362. Virtual particules and causation principle
  3363. limit to number of photons in a single point
  3364. Randomness of Radioactivity
  3365. Classical limit from steepest descent
  3366. Is light still the fastest?
  3367. virtual shell around a charged particle?
  3368. Pauli matrices: tau vs sigma
  3369. Scharnhorst, faster than light
  3370. average electronic momentum in bound state: please see this
  3371. difference between wave and matrix QM
  3372. Uncertain Hamiltonian and Values Therein
  3373. quick noob question: commutative of eigenstates
  3374. Scalar field energy for two delta function sources
  3375. entropy
  3376. Electron/Proton mass ratio
  3377. Tunneling Mangetoresistance(TMR)
  3378. Time dependant perturbation diagonal matrix elements
  3379. Experiment with single photons
  3380. Redshifting
  3381. On the Virtual Photons
  3382. The probability interpretation of the wavefunction?
  3383. Time loop thought experiments
  3384. Acceleration Potential and momentum of photon.
  3385. Quantum Computer Questions
  3386. Time travel paradox only due to choice
  3387. Propagator in Feynman rules
  3388. regularization of integral by substraction
  3389. force is only in packets
  3390. Do Electrons gain mass in an electrostatic potential?
  3391. Susskind and Hawking on hard determinism
  3392. 6 band kp method
  3393. Spin, Anti-matter and all that jazz.
  3394. Extracting zero-point energy using the Casimir effect?
  3395. Exercise in Weinberg's book
  3396. 't Hooft and Veltman's paper and Wick rotation
  3397. Scalar field theory - Feynman diagrams and anti-particles
  3398. Electron in a box wave bounds
  3399. Reason a Dineutron is not bound?
  3400. Schrödinger-Poisson self consistent code
  3401. Validity of virial theorem in QM
  3402. Quantum Jitters?
  3403. The Many Worlds Theory and Immortality
  3404. Integrated kernel and spectral zeta function
  3405. Exchange operator
  3406. Subsequent Measurements
  3407. The heisenburg uncertainty principle
  3408. connection, horizontal lift, and berry phase
  3409. Autism thinking and quantum physics
  3410. schrodinger equation with finite difference method
  3411. Principle of Covariance
  3412. Applying Heisenberg Picture Confusion
  3413. SOS Schrodinger equation with finite difference method according to Chuang SL
  3414. new quantization method
  3415. Electron motion in a p-orbital
  3416. can someone help me understand this question please
  3417. which is the conjugate variable?
  3418. Electron Shell
  3419. someone said they solved newtonian physics with string theory
  3420. a question about solving Schrodinger equation with eigs() in Matlab
  3421. photon emission from simple harmonic oscillator
  3422. how to measure berry phase?
  3423. (Anomalous?) Wick rotation in Fujikawa's method
  3424. Electron energy
  3425. Electron density
  3426. Spin?
  3427. Quantization = construction of quantum theories based on the classical limit?
  3428. S orbitals
  3429. Interaction betwen position eigenstates of particle
  3430. Wick product
  3431. Basic question on photon interacting with electron
  3432. How to prove my dad is wrong?
  3433. Quantum numbers
  3434. Moving from the exclusion principle to degenercy pressure/forces
  3435. time dialation
  3436. example of non-transitive operators?
  3437. Observing the double slit experiment
  3438. Deriving the De Broglie Wavelength
  3439. 4th dimension
  3440. Very stupid question about Wigner's Theorem
  3441. DFT algorithm
  3442. What causes octets?
  3443. 1D Parabolic potential
  3444. Feynman and quantum gravity
  3445. What about small momentum divergences?
  3446. Electron in constant magnetic field - classical vs quantum
  3447. Angular momentum
  3448. Please can you explain some of the quantum maths and formulas?
  3449. Heisenberg principle, little question
  3450. intrinsic momentum
  3451. Photon's momentum
  3452. Heisenberg principle, about time
  3453. Laser entanglement of atoms that are magnetic
  3454. From QHO to Angular Momentum
  3455. classical and quantum polarization
  3456. In QFT how to take this derivative?
  3457. Atoms tunnelling through a metal surface
  3458. Reduced Mass
  3459. Quantum refrigerator
  3460. Effing Virtual States -- How do they work?
  3461. Vanishing commutator for spacelike-separated operators?
  3462. software to handle gamma matrix identity
  3463. Hawking radiation & quarks/gluons
  3464. Changes spotted in fundamental(α)constant
  3465. total energy levels of the electron and rest energy
  3466. Hackers exploit quantom cryptography
  3467. Can work function be changed by charge-bias?
  3468. Scenario
  3469. Mach-Zehnder Interferometer
  3470. virtual photons and electron orbitals
  3471. Relation between Quantum Mechanics and Temperature
  3472. Is the expectation value of this commutator zero?
  3473. Energy of virtual photons
  3474. Relative Time for Quantum Mechanics
  3475. Do we know for sure if gravity exists in quantum states?
  3476. are mathematical manipulations admisible if integral are divergents ??
  3477. zero or two spin of electron
  3478. Notational question, |1>
  3479. Boost generator transforms as vector under rotations
  3480. State Kets in QM and F. Path Integral
  3481. quantum phase coherence
  3482. Question Regarding Commutator of two incompatible Hermitian Operators
  3483. Literature
  3484. Dual-tensors not in Lagrangian
  3485. Density Operators, Trace and Partial Trace
  3486. From Heisenberg to Superposition states
  3487. Hemiltonian Question
  3488. What does Max Planck mean in this quote?
  3489. Questions about fundamental interactions, uncertainty principle and entanglement.
  3490. Questions about wave-particle duality terms
  3491. How to quantize electromagnetic field in media?
  3492. uncertainty principle and electromagnetic field
  3493. Understanding minimal substractio for several variables
  3494. what is the hamiltonian in Klein-Gordon equation?
  3495. EPR paradox-failure?!!
  3496. Energy conversion time
  3497. Need help understanding quantum Mechanics
  3498. The Definition of Waves in Quantum Mechanics
  3499. Another entaglement question
  3500. multiparticle wave and quantum field?
  3501. puzzled by a word
  3502. When does entangled collapse happen?
  3503. What is a field?
  3504. Why Psi^2 not square rooted
  3505. The illusion of separability and the irrelevance of Bell's theorem
  3506. signicance of positive and negative frequencies?
  3507. Classical Version of Vacuum Polarization
  3508. entanglement and identical particles
  3509. Understanding Mixed States, Pure States
  3510. Order of operations with bras and kets
  3511. Identity in Schwinger's paper
  3512. How long does it take an electric dipole to emit a photon?
  3513. Heat transfering from Cold to Hot?
  3514. continuous eigenvalues
  3515. How long does does it take for the probability cloud of an electron to jump?
  3516. Covariant theories
  3517. Contemplating an apparent paradox in the classic double slit experiment.
  3518. dirac equation in one dimension
  3519. Virtual Paricles and the Laws of Conservation
  3520. Background independence
  3521. quantum computing
  3522. the rule of raising and lowering indices
  3523. Local Realistic in 4-Space Sliced to 3+1 Nonlocal
  3524. Antiparticles and gravitation
  3525. When does the wavefunction collapse?
  3526. Quantum thoughts
  3527. Meaning of a static EM field
  3528. Do theories exist that describe gravity with Feynman path integral modification?
  3529. Help Request QHO series method from Griffiths
  3530. singlet and triplet state
  3531. Sine waves and 4th derivative and 4 dimensional space-time relationship?
  3532. photon path
  3533. Continuous symmetries (Srednicki)
  3534. Light dying while traveling in space?
  3535. velocity of light while coming out a denser medium
  3536. superposition in particles
  3537. unsure about a part of quantum physics
  3538. Conservation of Baryon Number
  3539. Classical canonical transformations and unitary transformations in quantum mechanics
  3540. singlet and triplet state
  3541. Collapsing a wave function by measurement
  3542. Notation question for density matrix
  3543. Does a positron absorb a Photon?
  3544. Entanglement thoughts
  3545. Phase space and the quantum Liouville theorem
  3546. Discover Magazine Article Backward Causality
  3547. Digital quantum batteries
  3548. 2 Dimensional Objects
  3549. Zernike Wave Function
  3550. please help me on disconected diagrams
  3551. non-differentiable space-time
  3552. relating the angular momentum with lapacian
  3553. commutator of x and p
  3554. Expectation value of momentum in discrete states
  3555. writer's quantum entanglement Qs (help!)
  3556. Electron Orbital
  3557. Commutator of [x^2,p^2]
  3558. How close before "touching"?
  3559. Two square brackets?
  3560. Shouldn't Lagrangians be real (hermitian)?
  3561. Is there a general prescription for commutators?
  3562. Is Heisenberg principle applicable to a photon?
  3563. dBB and non-locality
  3564. de Broglie's wave frequencies for particles
  3565. quantum computer....
  3566. Superposition vs. Causality
  3567. attraction between two charges in QED
  3568. Uncertainty principle
  3569. QFT learning with solved examples
  3570. A few more questions about quantum teleportation
  3571. Help on Quantum Mechanics
  3572. how to change unit of quantum to energy
  3573. Quantum Tunneling
  3574. Quick question from none math/physics guy
  3575. Excited electrons
  3576. diagonalization
  3577. Quantum Mechanics postulate
  3578. Is quantum field theory really lorentz invariant?
  3579. In practice how do we prepare a desired quantum state?
  3580. Form Factors of Elementry Particles
  3581. Double-Slit Experiment - Clarification on 'Observation'
  3582. Need help for book (fiction)
  3583. Bose-Einstein Condensate
  3584. Feynman integral over histories= over paths?
  3585. Geometric Phase
  3586. HOM dip and fair sampling
  3587. Electrons disappearing?
  3588. Bell States
  3589. is xxz model integrable?
  3590. Quantum Teleportation
  3591. Compton Effect vs. Photoelectric effect
  3592. Another Entanglement theory question
  3593. zero kelvin
  3594. Deriving the potential from the propagator
  3595. Energy of individual particles
  3596. Has anyone have seen this QFT book?
  3597. 3 body collision
  3598. Divergence of forward Coulomb scattering?
  3599. The normal and anomalous Zeeman effect..
  3600. I need a basic reference for cold atoms homework
  3601. infinities in the Casimir effect?
  3602. ionization Potential of molecules
  3603. What is an observation or measurement?
  3604. Triple Slit Experiment?
  3605. Is there an upper limit to e/m frequency?
  3606. Speed of light derived from Planck constant?
  3607. Can an observer be in a superposition?
  3608. Question on Time-independent perturbation theory: I am confused
  3609. Uncertainty Principle
  3610. Is Spintronics the Future of the Electronics Industry?
  3611. Energy eigenfunctions in time-independent perturbation theory
  3612. Path integral formulation
  3613. Uncertain about uncertainty!
  3614. particles in a negative energy region?
  3615. Significance of ((H,x),x) double commutator?
  3616. Quantum Inequalities
  3617. Some basic QFT
  3618. Why no Compton with Potoelectric effect?
  3619. Photon stream impinging on half-silvered mirror
  3620. NMR mathematics
  3621. Delayed Quantum Erasure Double Slit with Observer Choice Available
  3622. Stability of quasi low-dimensional crystals?
  3623. Maggiore's QFT textbook error?!
  3624. Path integral in coherent states
  3625. Where's the Photon in Electromagnetism?
  3626. Comparing Quantum Foam with Vacuum Energy and the relationship to hyperspace
  3627. Analog of Hawking Radiation Observed?
  3628. Can't The Collapse of The Wave Function be Explained Without MWI?
  3629. The violation of energy conservation law?
  3630. heisenberg uncertainty derivation
  3631. Understanding superposition and entanglement
  3632. why pesistent current in a normal metal ring is a surprise?
  3633. arbitrary spin operator
  3634. 'Detection' at a slit
  3635. Energy from somewhere else
  3636. Schmidt Rank
  3637. Uncertainty about Uncertainty Redux
  3638. Math of De-Broglie wavelength boggles me
  3639. What would happen in this double slit experiment?
  3640. Relativity and Quantum Entanglement
  3641. Is light grainy?
  3642. Randomness being an intrinsic property? Quantum entanglement?
  3643. Heisenberg Uncertainty Principle
  3644. Can the wave function collapse before being measured?
  3645. Question about excited atoms etc.
  3646. Fermion creation and annihilation operators
  3647. Some doubts understanding wave nature experiment for electrons
  3648. Correlation function, vacuum expectation value, QT
  3649. What is the rationale behind quantum theory and the afterlife?
  3650. Uncertainty Principle - nature or human nature?
  3651. Delayed-choice double slit experiment
  3652. Why is the Green's function equal to the vacuum expectation of the field?
  3653. does pauli exclusion principle
  3654. Envariance and Bohm
  3655. Express arbitrary state in second quantization
  3656. how does one observer win out over another?
  3657. Spin vs. helicity
  3658. Evolution of spin states
  3659. photoelectric effect & your home
  3660. Dirac delta integrated from 0 to infinity
  3661. Light Transfer (Light Transmittance)
  3662. Quanta and Irrational numbers
  3663. [tex]\Phi^3[/tex] Quantum Field Theory
  3664. Information Abou FTL Video Needed
  3665. how do a and a^\dagger transform under time reversal transformation?
  3666. Quantum Suicide/Immortality
  3667. Weyl Rep
  3668. Why atoms come together
  3669. Questions about Rigged Hilbert Space
  3670. Hamiltonian vs. Hermitian
  3671. Does a photon have a width and height ?
  3672. What does the Uncertainty Principle say about the location of photons?
  3673. electron correlation
  3674. spinors and tensors
  3675. Questions on QED
  3676. Electron/photon interference pattern questioned
  3677. can virtual photons cross any obstacles?
  3678. Basics on Quantum Physics.....
  3679. How does one arrive at this equality?
  3680. Time derivative in the Heisenberg picture?
  3681. Having trouble with time (in)dependant solutions
  3682. Simple question- Wave function collapse
  3683. How to show time ordering is frame independent
  3684. relationship between mass and interactions
  3685. jordan wigner transform and periodic boundary condition
  3686. What Precisely Does "Preferred Foliation" Mean?
  3687. scale of uncertainty principle
  3688. DFT for molecular systems
  3689. Reference suggestions for a struggling chemist.
  3690. Alter the path of a photon.
  3691. Space-Time — Momentum-Energy uncertainty relations
  3692. Need some convincements on microcausality
  3693. Best way to do bra-kets in latex?
  3694. Quantum physics and technology
  3695. Adibatic Approx.(i.e., Born-Oppenheimer)
  3696. Probability laws of quantum mechanics
  3697. Dalembertian operator?
  3698. Radiation of an accelerated charge
  3699. electromagnetic mass of the electron
  3700. Fock space in interaction theory
  3701. propagator using cauchy integral
  3702. Peskin-Schroeder - Eqn 2.45 derivation
  3703. Einstein against Quantum theory
  3704. Better than Bell: The GHZM Effect
  3705. Quantum mechanics basics
  3706. spin-spin relaxation time in water
  3707. Schrödinger's cat?
  3708. Is there a quantum nuclear theory?
  3709. Ionizing solutions to the hydrogen atom
  3710. Bloch Sphere Representation
  3711. Quantum computing..necessary classical devices knowledge?
  3712. Hawking radiation redshift (?)
  3713. If two operators commute...(eigenvector question)
  3714. Degenerate Energy Levels
  3715. Analogue of the S.E. for photons?
  3716. Action as an observable
  3717. Quantum Magnetism
  3718. String Theory/M-Theory
  3719. single slit diffraction
  3720. Does matter convert to photons only?
  3721. Minkowski vacuum: Poincare invariant, quasi-free state
  3722. How do we associate real measurements with theoretical quantities?
  3723. Why is entanglement essential for quantum computing?
  3724. rotational invariance
  3725. Transitions caused by circularly polarized light
  3726. Fundamental measurement
  3727. radial schrodinger and shooting method
  3728. Wondering about the origins of light?
  3729. Wondering about the particle treatment of light?
  3730. Measurement of two components of electron spin
  3731. negative pressure in quantum mechanics
  3732. Does it make sense to define operators like r,theta, phi
  3733. Dyson-Wick formalism in second-order QED - trouble with derivation
  3734. Question on Completeness of a set of Eigenstates
  3735. S-matrix formula from Lippmann-schwinger eqn
  3736. Elitzur–Vaidman Bomb-Tester Extension for Boolean Variable Return
  3737. Ineracting massless particles
  3738. elementary QFT question
  3739. time as a parameter
  3740. zeroes of zeta function as energy levels?
  3741. The meaning (and validity) of fractional occupations in QM
  3742. Is teleportation possible?
  3743. Is there gravity at small scales?
  3744. T-symmetry (string theory) for minimum length?
  3745. Very basic question(s) about photons
  3746. difference among energy level,energy state and quantum state
  3747. Spinor indices
  3748. sudden removal of potential
  3749. proof that commuting operators have a shared base of eigenfunctions
  3750. About electrons in a periodic lattice
  3751. Elementary question:[A,B] = [A-<A>, B-<B>]
  3752. quantum double slit experiment
  3753. basis transformation
  3754. Question about Dr. Chinese's example of Bell's Theorem
  3755. Large Object Wave Functions
  3756. Fine structure, and hyperfine structure
  3757. Density matrix conditions
  3758. Schoerodinger Eigen values
  3759. Zee, page 31
  3760. van der Waals' forces
  3761. 137?
  3762. quantum error correction
  3763. Counting and Grouping Feynman Diagrams
  3764. chain rule for functions of operators?
  3765. Light-front coordinates and the vacuum.
  3766. about energy conservation
  3767. Second order correction to the wavefunction
  3768. Turing machine and quantum computers
  3769. Is the Uncertainty Principle Statistical? And if so...
  3770. Lifetime of a photon
  3771. Boundary terms in hilbert space goes vanish
  3772. Collapse of Wavefunction
  3773. State vs Orbital
  3774. Commutator
  3775. Zeilinger and computer games with quantum mechanics
  3776. anti Zeno effect
  3777. How is heat caused by photons?
  3778. Quantized Dirac Field Interacting with a Classical Potential
  3779. mass terms in quantum field theory
  3780. DIY Quanum Eraser trouble
  3781. Question about an electric circuit and quantum physics
  3782. Schrödinger's cat
  3783. Quantum Foam
  3784. uncertainty principe
  3785. A Particle in the well
  3786. The spectral theorem and Hamiltonians
  3787. About Ward Identity
  3788. The Polarization of electron ?
  3789. time and alternate realities/universe
  3790. Wave Particle Duality and its relation to the Wave Function
  3791. Uncertainty principle and angular momentum
  3792. Product of three gamma matrices
  3793. Does distance from point of origin of the photons matter in double slit experiments?
  3794. Euclidean geometry doesn't exist?
  3795. Photon interaction
  3796. QFT around fixed classical backgrounds
  3797. why in nature there is no spinless fermion?
  3798. Question about energy gaps
  3799. classical radius of nucleons and quarks
  3800. Spectroscopy and Russell-Saunders coupling
  3801. Wondering about QM whether things are actually all deterministic?
  3802. Special case of energy value for a particle in a non zero potential region
  3803. What does this notation mean exactly?
  3804. Hermitian conjugate of spinor product (Srednicki ch 35)
  3805. Adding angular momenta
  3806. What is the furthest distance particles can interact and still become entangled?
  3807. why photons have spin 1?
  3808. time derivative of a Schrodinger-picture operator?
  3809. Quantum Weirdness
  3810. property of ground state
  3811. What's the motivation of using silver atoms in the Stern-Gerlach experiment？
  3812. On the quantum physical theory of scattering
  3813. Self adjointness and domain
  3814. Product of expectation values
  3815. concept of stae vector
  3816. How Obtain A Wavefunction
  3817. Energy in Schrodinger’s Equation
  3818. Quantum Entanglement
  3819. the uncertainty
  3820. The statistics
  3821. Lagragians for spin 1/2 fields
  3822. Parity operator and change of variable question
  3823. Describing Massive Theories by Dimensional Reduction
  3824. Quantum Entanglement : Spooky action at a distance
  3825. Move of a particle
  3826. The origin of the quantum vacuum?
  3827. BRST transformation
  3828. Qm Applies to Real Life?
  3829. When is the norm of a state equal to 1?
  3830. Generator of Rotations
  3831. Expectation value
  3832. about the spinors
  3833. absorbing virtual particles
  3834. Entaglement and hidden variables
  3835. "Pauli matrices with two spacetime indices"
  3836. Is a hydrogen atom a fermion?
  3837. Momentum Operators and the Schwartz Integrability Condition
  3838. Second quantization particle current
  3839. Wondering about entanglement at it's most basic level?
  3840. dimensions of wave function?
  3841. Is there photon with Sz=0?
  3842. About the unit of Radial wave function R(r) of Hydrogen atom
  3843. Hilbert Space
  3844. Generating function
  3845. matrix representation
  3846. Isotropy and degeneracy
  3847. Schroedinger's cat experiment, my question?
  3848. struggling to understand the concept of spin triplets
  3849. particle in a box: commuting energy and momentum operators
  3850. Solution to the Klein Gordon Equation
  3851. A Few Clear Questions on the Nature of Quantum Theory
  3852. Simple questions about photons
  3853. DoF of a gauge boson
  3854. Pervasiveness of linear operators
  3855. electromagnetic field in vacuum
  3856. Are static E fields non existant?
  3857. Relational QM
  3858. Cause of the Heisenberg Uncertainty Principle
  3859. elementary QFT question, part 2
  3860. Transfer matrix, section in Jan Smit's book on Lattice Fields theory
  3861. Simplified Hausdorf-Campbell formula
  3862. Light propagation through polarizers
  3863. Is every Hamiltonian necessarily Hermitean?
  3864. Non-separability and solipsism
  3865. why vacuum has negative pressure?
  3866. virtual photons
  3867. Dirac Spinor Algebra
  3868. Energy to mass.
  3869. Spin Angular Momentum matrix of an antineutrino
  3870. Number of photons per pulse
  3871. Action-at-a-distance in Sideways EPR-Bell?
  3872. commutator relation
  3873. Basic QM: Photon in a box
  3874. adiabatic curvature
  3875. Help - Anderson localization
  3876. heisenberg uncertainty principle derivation and canonically conjugate vairables?
  3877. entanglement carrying data variant
  3878. Fermi's Golden Rule for E&M
  3879. meaning of SO(4) -- SU(2)xSU(2)
  3880. Is there some reverse of annihilation?
  3881. QFT Commutator (momentum and Hamiltonian) Issue
  3882. Relation to Golden Ratio
  3883. Trouble understanding spin-1 Pauli matrices...
  3884. about energy levels
  3885. Energy time entanglement
  3886. Trouble understanding band theory
  3887. CP Violation
  3888. Self-learning QFT for mathematicians
  3889. Decoherence does not collapse wavefunc.
  3890. double slit experiment with electrons and larger particles
  3891. Operator
  3892. "In principle" limitations of hidden variable theories
  3893. Quantum suicide
  3894. What causes backscattered stimulated Raman scatter?
  3895. lacking information of the general quantum physics explanation
  3896. Does speed=frequency*wavelength for electrons?
  3897. Complex Heat Equation
  3898. Questions concerning Delayed Quantum Eraser
  3899. de Broglie Wavelength
  3900. Mixed State Eigenfuntion Equations
  3901. Two-particle fermionic basis states
  3902. Dirac notation algebra
  3903. Quantizing the Klein-Gordon equation
  3904. Some Quantum Questions
  3905. Quantized Energy Levels
  3906. Is it possible a virtual photon is massive particle?
  3907. QM postulate
  3908. Energy of a QM system, stationary states
  3909. Decoherence over long distances - thought expt
  3910. Is there always a real solution for every real Hermitian eigevalue problem?
  3911. Quantum Limit
  3912. Question about quantum superpostion
  3913. second order correlation
  3914. Does this expression has an exact solution?
  3915. Caesium transitiions names
  3916. information-energy
  3917. what does simultaneous reality and non-commuting operators mean?
  3918. Orbitals and shells
  3919. Coherence of Single Photons
  3920. Method of Images in QM -- Addition of Angular Momenta???
  3921. boson behaviour
  3922. Feynman and Bohmian mechanics (at the macroscopic level)
  3923. Entanglement and two particle system..
  3924. correlations between QM operators
  3925. The reality of the quantum world - article
  3926. What does Wikkepedia mean when they talk about Quantum tunnelling
  3927. Vector expressions in QM
  3928. methods of ionisation/excitation
  3929. Measurement in de broglie-bohm theory
  3930. Ryder: QFT: 1985: pp. 34-36: SU(2) and O(3)
  3931. Angular momentum in QFT
  3932. axioms of quantam Physics
  3933. The conjugate of a Wave-Function
  3934. Wavefunction of Macroscopic Objects
  3935. Optical Transitions
  3936. Second quantization
  3937. Zero-point Field (requesting references)
  3938. When Virtual Becomes Real
  3939. What means 'coherence' in quantum mechanics?
  3940. Is the harmonic oscillator Hamiltonian an unbounded operator?
  3941. Is QM Phase Inherently Relativistic?
  3942. Double slit experiment
  3943. Are space and time quantized quantities?
  3944. Non-relativistic Regge Trajectory
  3945. Annihilation operators
  3946. Basic IR and NMR spectroscopy questions
  3947. measuring one slit in double slit experiment
  3948. Bose Einstein
  3949. Collapsing a Wavefuntion
  3950. Pauli Matrix
  3951. probability of finding a state
  3952. Eigenvectors & Commutation
  3953. Deep space Communication hypothetical question
  3954. Symmetry of Many-Worlds?
  3955. Can't find that on the dictionary
  3956. About Gauge invariance - again
  3957. index of "universe theories"
  3958. Deck of Cards and Planck Time???
  3959. Wave Formula by complex analysis
  3960. can individual particles in entangled pair each produce separate interference pattern
  3961. matter waves
  3962. Notation & Spin
  3963. The Hydrogen Atom (Schrodinger vs original Bohr theory)
  3964. Ryder, QFT, 1985, pg. 40, Eq. (2.69) K = sigma??
  3965. Quantum entaglement question
  3966. Srednicki bar notation
  3967. an identity for functions of operators
  3968. Regarding normalization of the eigen basis vectors
  3969. is free energy defineable for a micro-canonical ensemble?
  3970. Equalities for Paulimatrix averages
  3971. Who Applies The Operator?
  3972. Force-Boson Theory
  3973. undergraduate thesis topic
  3974. Worm Hole Idea: Electron talk at Great Distance
  3975. Questions about the Photoelectric Effect
  3976. Wavefunction really like a wave?
  3977. How did Planck do it
  3978. Weak interaction
  3979. spin-2 particles
  3980. Grasmann Lagrangian - literature
  3981. Why "time" is not an observable in quantum theory?
  3982. average uncertainty?
  3983. About Weinberg's QFT book
  3984. De Broglie wavelength
  3985. dirac metrix
  3986. Solving the Dirac Equation for the Hydrogen Atom
  3987. Newton-Wigner operator for K-G filed
  3988. Left & right Weyl spinors
  3989. Double slit exper. with "white light"
  3990. electrons as particles?
  3991. Decoherence
  3992. Two kinds of density operator
  3993. Can anyone confirm the ground state Bohr radius for muonic hydrogen?
  3994. Density Matrix (pure state) Property
  3995. no uncertainty principle for scalar particles?
  3996. Lattice Field Theory - QCD. Trace?
  3997. Why the discrepancy in muonic H Bohr radius? 285 fm or 256 fm?
  3998. E/M ratio
  3999. Grover's Algorithm/Superposition?
  4000. entanglement?
  4001. Integration of Hopf term
  4002. puzzled about electromagnetic field behaving like oscillators
  4003. Question about the uncertainty principle?
  4004. symmetry factors (Srednicki, figure 9.11)
  4005. How does interacting Lagrangian have form of product of fields?
  4006. Energy: Discrete or Continuous
  4007. Variational Principle on First Excited State
  4008. Quantization of Klein-Gordon Field
  4009. x-rays
  4010. Basic question about how spin changes in time
  4011. Calculating Dirac bilinears
  4012. atoms are everywhere and nowhere at the same time
  4013. Symmetries in QM
  4014. Why in Quantum Mechanics is about energy but no force!
  4015. Commuting operators
  4016. What constitutes as a measurement?
  4017. energy levels for a different plancks constant
  4018. Wavefunction of a single particle
  4019. Time dependent perturbation theory
  4020. Operators in an exponent
  4021. Why is Schrodinger's Equation complex?
  4022. Virtual Particles
  4023. Why the annihilation must be between a couple of particle and counterpart antipartic?
  4024. Mapping Points on the Bloch Sphere
  4025. virtual photons
  4026. Quantum Cryptography Project Help.
  4027. Etracting ZPP from the vacuum is in violation of the 1st law of thermodynamics?
  4028. Interference pattern observed half-way into the formation
  4029. What happens to the photon?
  4030. Does Quantum Physics Prove there is no such thing as Matter?
  4031. Thermal average of operators
  4032. Macroscopic Quantum Coherence & Macrorealism experiments
  4033. elliptically polarized photon and luminescent material
  4034. Measurements and Operators
  4035. Can superposition be tested by gravity?
  4036. Number of electron of a Hydrogen atom (molecule)
  4037. Attosecond Tomography and Elephants
  4038. Photoelectric effect experiment
  4039. A Quantum programming language
  4040. neutrinos
  4041. How does a quantum mechanical state 'look' to different observer
  4042. Basis in QM
  4043. Scalar Product of Momentum Eigenvectors in terms of Little Group Representation
  4044. Uncertain principle and Noether theorem?
  4045. Wavelength of photon and size of imaged object
  4046. dont imagine?
  4047. The Delayed Choice Experiment
  4048. Temporaly uncertainty principle
  4049. Entanglement and Teleportation
  4050. Reposting (Delayed Choice Experiment)
  4051. Two complex fields + interaction, conserved current?
  4052. Non-Gravitational Singularities
  4053. Operator and eigenvalue
  4054. Meaning of "h.c." in Lagrangians (& elsewhere?)
  4055. Which wave function and operator is responsible for the Double Slit Experiment?
  4056. Invariance
  4057. Bell's theorem proof. Does it really proofs anything?
  4058. QFT question
  4059. Quantum Optics...wave amplitude question
  4060. why energy level transitions only absorb or emit photons？
  4061. Stimulated Emission
  4062. Photon Energy decreases
  4063. time independent operators and Heisenberg eq - paradox?
  4064. What is complex quantum mechanics?
  4065. Intuitions on a Dual Vector Space
  4066. Question about planck lengths
  4067. What is "the" electromagnetic field?
  4068. Is This Weird and Simple (Thought) Experiment Correct? (Bose-Einstein Statistics)
  4069. The "cause" of entanglement / coupling
  4070. simultaneous diagonalization of two hermitian operators
  4071. Equation describing particle with spin higher than 1/2
  4072. Dirac eq in electric field
  4073. Possible argument in favor of many worlds interpretation
  4074. Dirac's explanation of negative energy states
  4075. One slit diffraction
  4076. Questions on Quantum Numbers (introductory physics)
  4077. question on delta potential function..
  4078. Why they call them Lie groups.
  4079. Pauli and Dirac matrices
  4080. Substitution
  4081. Commutation relations in QFT
  4082. Ladder operators for angular momentum
  4083. Born's Postulate
  4084. Golden ratios in quantum mechanics?
  4085. Worked Out Example of Consecutive Observations in QM
  4086. What is bound in Planck Impedance?
  4087. Easy question QFT
  4088. Time independent Klein–Gordon equation with boundary conditions.
  4089. Klein–Gordon equation with time dependent boundary conditions.
  4090. What maths in preparation for quantum mechanics
  4091. Schrodinger's equation and the Diffusion equation
  4092. Finding Spectrum of Hamiltonians
  4093. Principle of superposition
  4094. Can a quantum formalism exist without a Hamiltonian Formalism
  4095. operator
  4096. Uncertainty Principle Hypothetical question
  4097. how to derive the Breit equation (Pauli approximation) in position space?
  4098. Photon momentum / force
  4099. size of indentical partcles
  4100. Six Generators of Group SO(4)
  4101. Why particle and antiparticle have the same mass?
  4102. Hermitian operators
  4103. Coulombic interaction between the proton and electron of a hydrogen atom
  4104. Second Quantization
  4105. How to understand electrostatics field in quantum level?
  4106. Change coupling in a system with three angular momentum
  4107. Explicit form of time evolution operator
  4108. i dont understand why info cant be sent with entangled tripletes
  4109. Variable speed of light in QED
  4110. Crashing Waves create Reality
  4111. multiplets in group theory
  4112. nonlocality
  4113. heisenberg's uncertainty principle
  4114. Operators
  4115. what are bosons and how do they relate to the bose-einstien theory of condensate?
  4116. what determines the number of electrons in an atom
  4117. heisenberg photons and particle velocity measurement
  4118. Any quantum analog for Betrand's theorem?
  4119. Momentum operator
  4120. Question about the properties of electromagnetic fields
  4121. Hamiltonian-momentum commutator
  4122. Majorana Path Integral
  4123. Another for Leggett inequalities.
  4124. The inconsistency of quantum nonlocality
  4125. Why interaction Lagrangian has form of product of fields?
  4126. Photon Average Energy in a Cavity Resonator
  4127. Quantum Entanglement: Entanglable particles?
  4128. what happens when objects reach the event horizon?
  4129. quantum physics
  4130. The electron as a wave: what is it that "waves"
  4131. Non-differentiable path in path integral?
  4132. correlation between electronic band structure of an atomic species
  4133. Particle creation due to an oscillating field
  4134. Hydrogen atom (HELP ME FAST PLEASE!)
  4135. calculating energy eigenvalues/eigenstates for multielectron atoms using SCF
  4136. Runaway solution & QED
  4137. Quantum Tunneling
  4138. when particles are not being observed do they still exist?
  4139. What,exactly, is a photon?
  4140. Some basic questions about Quantum Entanglement
  4141. The solution to the Shordinger's eq.
  4142. Bell Measurement on 3-qubit GHZ state?
  4143. the basic idea
  4144. Proof of Hellmann Feynman Theorem for TD wavefunctions
  4145. Prove that eigenstates of hermitian operator form a complete set
  4146. The Klein-Gordon field as harmonic operators
  4147. electrochemical potential at source and drain under a bias
  4148. quantum physics and relativity
  4149. Quantum Tunneling and Deuterium Fusion
  4150. Helium ionization
  4151. Why do the photons produced by a laser have the same phase?
  4152. Do time and space occur in quantum units?
  4153. Quantum Tunneling and Entanglement
  4154. Quantum Randomness and Free Will
  4155. Significance of wave function and its sign
  4156. Quantum harmonic oscilator
  4157. Question about the Stern-Gerlach Experiment
  4158. Spin 3/2 fields & Rarita-Schwinger
  4159. Why do people even teach quantum mechanics without braket notation?
  4160. Density matrix formalism
  4161. is it true that you are never actually touching something?
  4162. questions about deBroglie (matter) waves
  4163. Are probabilities for Eigen Vectors of Hamiltonians unaffected as time evolves?
  4164. Antiparticles
  4165. Definition of Lagrangian Density?
  4166. Dual slit exp. question
  4167. Ground state wavefunction real?
  4168. Is information ALWAYS conserved in quantum mechanics?
  4169. Why can we write this? (maths)
  4170. Wave/particle duality - electrons and photons
  4171. measurement disturbance - double slit
  4172. Local deterministic model of singlet state correlations
  4173. Can light be considered as information only?
  4174. A Bohm-type Theory may be necessary?
  4175. Will the de Broglie-Bohm theory survive the latest challenge of Leggett's inequality?
  4176. light emitted from combustion
  4177. Massive vector boson propagator - Definition
  4178. Minimum uncertainty wave packets energy interpretation
  4179. Examining the details of the Bell Inequality.
  4180. Representing a vector in terms of eigenkets in a continuos basis
  4181. Quantum vacuum fluctuations
  4182. Irreducible representations and elementary particles
  4183. natural linewidth of laser
  4184. Bosonic operators and fourier transformation.
  4185. Quantum effects in a single-slit experiment
  4186. Volume integral of current density
  4187. Help with understanding dual nature of electron.
  4188. Ryder, 1985 ed., pg. 97 magic!
  4189. Maximum distance of quantum tunneling using an STM
  4190. Sum of Histories Simultaneous Paths
  4191. Question about Constructing a Simple Quantum Computer
  4192. Noether's theorem: quantum version
  4193. Concerning the electromagnetic capacity for an electron
  4194. Can we demontrate the convergence of perturbation quantum field theory?
  4195. Quantum Teleporation
  4196. Light Cones and Simultaneity
  4197. Quantum Potential in Bohmian Mechanics?
  4198. Coincidence ?
  4199. Is decoherence deterministic?
  4200. simple question on Schrodinger Eqn
  4201. Are there any experiments that supports de broglie-Bohm theory?
  4202. Spin-wave approximation - bosonic operator question
  4203. Does the poincare conjecture disprove the shape of strings in string theory
  4204. Non-local and non-linear
  4205. hamiltonian mechanics and the electric field
  4206. Playing with bosons
  4207. How does non-commutativity emerge from path integral?
  4208. quantum fluctuations in a vacuum
  4209. Cosmological Constant Problem / Vacuum Catastrophe
  4210. A simple but fundamental question about tunneling that I'd like to get an answer on
  4211. Mass uncertainty?
  4212. The double slit experiment
  4213. \phi^{4} theory rigorously
  4214. Stimulated photons direction: book suggestion.
  4215. Question on Passage in "Six Easy Pieces"
  4216. QED: the strange theory of light and matter. " Light is made of particles " ?
  4217. Breaking down the wave function
  4218. Quantum Equilibrium in de broglie-bohm theory
  4219. Path integral
  4220. Discrete transformation of Proca field
  4221. Virtual particles
  4222. In the double slit experiment - what exactly is the measuring device?
  4223. Electron radii
  4224. The generator of Galilean boosts
  4225. Why does the Hamiltonian generate time evolution?
  4226. Help a Quantum Noob with the Wavefunction Collapse?
  4227. path integral and speed limit
  4228. Relativistic Quantum Mechanics
  4229. How are Qubits made?
  4230. What is the origin of subatomic forces?
  4231. Do holes have spin?
  4232. Infinite well with two regions
  4233. a question about perturbation series inversion
  4234. Parity dependence on the orbital quantum number (l)
  4235. Uncertainty principle
  4236. Step operators for harmonic oscillator
  4237. 2d Schrodinger equation - numerical solutions
  4238. Why is SHM solution real?
  4239. Observational evidence for many worlds (by Don N. Page)?
  4240. Triplet states in quantum dots
  4241. Does this force have a name?
  4242. Are there any regulating condition on the spin of particle?
  4243. Is modelling REALLY impossible in quantum mechanics?
  4244. Information: finite or infinite?
  4245. a measuring problem
  4246. Schrodinger equation
  4247. Doubt regarding Planck's Quantum Theory
  4248. physical system for this two level Hamiltonian?
  4249. Behaviour of photons in a 'sealed room'
  4250. particles, waves or none of the above?
  4251. Spin behavior in entangled electron pair
  4252. No Definite Properties Before Measurement
  4253. Wave Function mathematical vs real
  4254. Finite and infinite cross sections
  4255. Quantum, photon, wavelength relationship
  4256. Raman density of states
  4257. Lagrangian, scalar or pseudo-scalar?
  4258. The bohr model - dusting off
  4259. What is a quantum defect?
  4260. Interacting QFT - construction of states
  4261. A mathematical issue raised from perturbation theory
  4262. photoelectric and Compton effects
  4263. Does Noether theorem apply to gauge symmetry?
  4264. Representation of SL(2,C)
  4265. When can eigenvalue equations be used?
  4266. Dual Nature!
  4267. Probability a photon will couple with an electron
  4268. Speed of light and momentum???
  4269. nucleus energy level
  4270. Commutators in second quantization
  4271. Probabilities in QM is like Diffusion in Thermodynamics
  4272. The 6 hydrogen spectral line series'
  4273. wavefunction solution to the Schrödinger Wave Equation for a H atom
  4274. Please help to solve this dilemma!
  4275. "DNA waves and water"
  4276. Normal order of operator product
  4277. Question About Qubits and the Representation of the Bloch Sphere
  4278. confused about quantum principles
  4279. the process involved in reflection?
  4280. Compton Scattering Concept Question
  4281. Does Decoherence Von Neumann Interpretationrefute
  4282. Second quantization
  4283. quantum random number generator with radioactive decay
  4284. Virtual Particles and Hawking radiation
  4285. Spin vector and operator transformations query
  4286. Quantum Puzzle:Photoelectric effect
  4287. The great Antiphon is stumped on a simple problem
  4288. trace of momentum-space propagator
  4289. How to show gamma matrices are unique?
  4290. about the Schrodinger equation, the Hamiltonian, time evolution?
  4291. Asymmtric top in QM
  4292. BPS equation
  4293. Quantum nature of the inertia and Mach principle
  4294. meeting of photons
  4295. electron spin query
  4296. EMF between quarks & electrons
  4297. Relationship between EMF and distance between the particles
  4298. Electron self-energy?
  4299. Why must Klein-Gordan equation describe spinless particles.
  4300. Uncertainty in gas molecules?
  4301. Higgs Field and Antimatter
  4302. Coulomb's gap and Wave Equation
  4303. Photon absorbation in atom
  4304. Uncertainty in the presence of quantum memory
  4305. propagator at time-like separations
  4306. How to calculate a Vibronic Coupling?
  4307. Conservation of information in double-slit experiment
  4308. Difference between quarks & protons
  4309. How to tailor-make fields
  4310. Wheeler's Delayed Choice Experiment
  4311. Wave - particle duality
  4312. Entangled photon polarization thought experiment disproof request
  4313. Why S-matrix must be unitary?
  4314. Position operator in momentum space (and vice-versa)
  4315. Entropy in quantum mechanics and second law of thermodynamics
  4316. Quantum Vacuum (or QFT) Interpretations
  4317. Rigorous treatments of double-slit , quantum eraser, etc.
  4318. Waves with discrete set of frequencies
  4319. Field theory in non-relativistic QM
  4320. Uncertainty of an Operator
  4321. How do complex numbers manifest themselves in the subatomic world?
  4322. Spin projections on different axis
  4323. Special Relativity and Entanglement
  4324. Electromagnetic interactions & photon transfer
  4325. What IS happening with photon frequency?
  4326. In the second quantization spin operator, what are Pauli spin vector indices?
  4327. One quantum.
  4328. Transfer of Quantum State
  4329. Motion equation in quantum mechanics?
  4330. The MWI and the Anthropic "Principle"
  4331. Fermi Golden Rule
  4332. grassman number
  4333. Derive RMS around average of a hermitian operator
  4334. Schrodinger Equation
  4335. Normalization and orthogonality of wavefunctions
  4336. Dirac equation and g-factor
  4337. variable Planck constant
  4338. Usefulness of the momentum wavefuction in solving Schrodinger's Equation
  4339. Tensor products of representations
  4340. "Convergence Factors"
  4341. Derivation of Dyson Series
  4342. how to fire one electron at a time
  4343. Density Matrix
  4344. What's Really so "Quantum" About Heisenberg's Uncertainty?
  4345. Italian double slit electron experiment
  4346. Entangled particles - Correlations
  4347. imagine
  4348. Over-simplified Bell test experiment
  4349. Double slit experiment at event horizon of a BH
  4350. Ask a few specific use of the word physical if it is correct
  4351. Atomic electron wave frequencies
  4352. Feynman Path Integral
  4353. Quantum Logic Reversibility
  4354. Schrödinger Equation
  4355. Gravitrons and General Relaivity
  4356. Interference and entanglement
  4357. New Type of Entanglement - Time
  4358. Local or Nonlocal？
  4359. microcausality in field theory
  4360. How many numbers a point, a solution to Dirac eq.?
  4361. Matter and Looped Energy
  4362. The Natrue of photon
  4363. Lorentz transformation in Coulomb gauge
  4364. Nambu-Jona-Lasinio model
  4365. Should QM or QED be used?
  4366. Quantum decoherence
  4367. Some confusions about interaction picture, in peskin
  4368. Searching Book about QED; compton scattering of polarized photons
  4369. Wave packet
  4370. Shankar's treatment of Dirac's delta-function
  4371. Transmissive boundary conditions
  4372. Why is free field called "free"?
  4373. soliton v.s. homotopy group
  4374. Feynman rules for Majorana fields (based on Srednicki)
  4375. Help with intuition concering braket sandwich
  4376. Differentiating the complex scalar field
  4377. Quantum vacuum, virtual particles and ''friction''...
  4378. Cutkosky's rules?
  4379. the projetive Hilbert space of coherent state.
  4380. static fields in qft
  4381. particle behaviour
  4382. Wave-function frequency.
  4383. Consecutive Measurements on One of an Entangled Pair
  4384. Electrons traversing a Potential well
  4385. Schrodingers Cat is sbserved whilst in the box
  4386. QED:WeakForce:QCD::U(1):SU(2):SU(3)::T^1:T^2:T^3 ?
  4387. Rainbows and wave-particle duality
  4388. Double slit experiment question
  4389. Quantum Ring
  4390. Zero Point Energies of Various Particles
  4391. Which way detector (hardware) information
  4392. Question about double slit experiment
  4393. Wave function (orbital) rotation matrix
  4394. A confusion from David tong's notes on QFT
  4395. Franck-Hertz experiment
  4396. Non-coherent wave physics problem
  4397. How do supersymmetry particles affect QM, QFT, QED?
  4398. How can I deform electron orbitals?
  4399. Renormalization of QED
  4400. What separates one particle from another?
  4401. Conformal field theory: vertex operator
  4402. Bare charges
  4403. self-energies in position space
  4404. Where can I find Dirac's original papers?
  4405. Does Schrodinger's Cat Paradox Suck?
  4406. Bra-ket notation.
  4407. Few questions about quantum optics\quantum mechanics
  4408. Difference between coherent light and polarized light
  4409. EPR thought experiment
  4410. Neutron Dipole Moment?
  4411. Casimir Effect? Seems there is a simpler solution than virtual-particles.
  4412. Copy of "The Schrödinger Equation" by Berezin/Shubin?
  4413. Time travel and the double slit experiment?
  4414. diagonal basis to circular basis
  4415. Dirac Matrices
  4416. Unknown "well-known" equation in Sakurai
  4417. stupid question on schrodinger equation
  4418. How does a gauge field lead to charge superselection?
  4419. Wick rotation and interference
  4420. Interactions between virtual and real particles...
  4421. Helium lamp
  4422. General Relativity, Quantum Mechanics, Motion and Virtual Particles... Oh my!
  4423. Anti-matter wave-function
  4424. The velocity of electrons!! (question)
  4425. Superluminal
  4426. Boundedness of quantum observables?
  4427. velocity of qm particle in a box
  4428. Speed of photons through dual slit.
  4429. What happens in this thought experiment?
  4430. Higher spin fields
  4431. Quantum entanglement between fermions
  4432. Larmor Frequency...spin, orbital or total angular momentum??
  4433. Stern-Gerlach With 3 Magnets
  4434. Does light affect the magnetization of a material?
  4435. Single photon wave like propagation
  4436. partial derivatives
  4437. Magnetic boson?
  4438. Does energy time uncertainty violate conservation of energy for a small time delta t?
  4439. Quantum Mechanics e-2, Bransden & Joachain
  4440. interference of different lights
  4441. some questions about perturbative expansion of S matrix
  4442. About the n-point Green functions in position-space
  4443. Measurement-free definition of Virtual particles (MWI)
  4444. Quantum Electrodynamics in Curved Spacetime
  4445. Full knowledge of polarisation angle.
  4446. Insight, spontaneous ordering?
  4447. Stupid question about electron orbitals
  4448. QM: Is this a Spherical Harmonic Identity?
  4449. Entangled Photon Repeater = FTL Communication?
  4450. Unable to "decrypt" emission/absorption matrix element
  4451. Hilbert Space
  4452. Hydrogen atom with discrete nonlinear Schrödinger equation
  4453. Groenewold-van Hove theorem
  4454. Landau levels
  4455. binomial expansion of massive spin 0 propagator
  4456. Nondegenerate Eignefunctions as Linear Combinations
  4457. Weyl Vs Majorana
  4458. wave-packets with opposite momenta.
  4459. How do we know the value of spin?
  4460. Consciousness and Quantum Tunneling
  4461. Different masses of particles and anti-particles
  4462. Shannon entropy of wave function
  4463. dynamic relationship of the subatomic particles
  4464. Casimir effect: threshhold distance?
  4465. How useful are indefinite state spaces?
  4466. Field is more fundamental than particles
  4467. Time-Independent Schrödinger Equation
  4468. Axioms of quantum mechanics
  4469. elementary QFT question, part 3
  4470. If*the*angular*momenta*commute!!!!
  4471. deriving the EM Hamiltonian
  4472. Real Hydrogen Atom
  4473. Energy of a gas
  4474. Fermi Dirac Distribution
  4475. Quantum mechanical notations
  4476. Wave function phase relationships
  4477. pure state versus superposition
  4478. Observability of Momentum
  4479. Can Bohm’s Pilot go backwards through time to maintain locality?
  4480. Electric Field in QED?
  4481. quantum cloning and disentanglement
  4482. is there rigorous proof that in one dimensional disorder system, all states are local
  4483. Exclusion Principle
  4484. Describing Force using potentials
  4485. Quantum Entanglement Analogy?
  4486. Observing the observer
  4487. The effect of the magnet in a Stern-Gerlach experiment
  4488. Orbital motion problem
  4489. Difference between 'Quantum theories'
  4490. Non spherical solutions of a spherical potential well?
  4491. no simple map between classical and quantum
  4492. Massless spinors
  4493. BRS operator, ghost fields, Grassmann numbers
  4494. Quantum Field Theory Purly in Momentum Space???
  4495. Hamiltonian density
  4496. Path Integrals in finite dimensions!
  4497. free energy is less than ground state energy?
  4498. Degeneracy of the Quantum Linear Oscillator
  4499. The Dirac and K-G Solutions
  4500. matrix elements
  4501. How small?
  4502. The Origin of Entanglement
  4503. Integration in path integral formalism?
  4504. Asymptotic behavior of coefficients
  4505. Representation of Angular Momentum Operator in the (j,j')
  4506. Mark Srednicki's "Quantum Field Theory"
  4507. gauge theories
  4508. Are Noether charges a rep of the generators on the Hilbert space
  4509. wavefunction possibilities
  4510. Rectangular Potential and Constraints
  4511. How to describe the 'real world'
  4512. Photon fly through a baryon?
  4513. Help me in QTF theory(t'Hoof's method)?
  4514. Oracles in Quantum Physics
  4515. Quantum fluctuations = gravity?
  4516. Collapse Model fqxi winner.
  4517. Youtube maglev toy train demonstration
  4518. Historical qustion-models of atoms
  4519. Heisenberg's Uncertainty principle
  4520. Variation of determinant
  4521. IR divergences by analytic continuation of parameters
  4522. Problem understanding Sakurai
  4523. Doubt regarding uncertainty principle
  4524. is the space of total angular momentum complete?
  4525. de Broglie's wavelength, what is it?
  4526. Proof of MWI?
  4527. What is quantum tunnelling?
  4528. Orthogonality and orthonormality ??
  4529. Interpretations of Quantum for a Graduate Student
  4530. Peskin Schroeder Enigmatic Equation
  4531. Multiple wavelengths of light through much larger single slit
  4532. Can destroy a real photon(mass on-shell) to create a pair massive particles?
  4533. splitting in MWI
  4534. Question about nonlocality
  4535. Electrostatic energy in annihilation process
  4536. What units are used after eV, MeV, GeV, etc, are divided by c^2?
  4537. Atomic particle g-factor relationship?
  4538. What does Quantum entanglement tell about Causality?
  4539. Schrodinger Equation : Infinite Square Well
  4540. Transfering Electricity w/o Medium? (Electron Beams?)
  4541. uncertainty principle
  4542. hydrogen spectra
  4543. how many pure numbers relate to elementary particles?
  4544. Types of entanglement
  4545. Time-reversal operator for fermions (Sakurai)
  4546. Uncertainty Principle Equations
  4547. Left and right-handed Weyl spinors
  4548. What is Pressure in QM?
  4549. Quantized EM-field
  4550. Time reversal symmetry breaking
  4551. Quantum 'decision time'
  4552. Entanglement and Correlation
  4553. Custom made Lagragian and Help Wanted
  4554. solving the time evolution of a system
  4555. Minimal elements of a MWI and the preferred basis problem
  4556. irreducible representations
  4557. Can anyone help me out with von Neumann entropy please??
  4558. quantum coherence phenomena
  4559. What does it mean by "independent"(in gauge fixing of EM field)
  4560. Has a loophole free test of Bell's inequalties been preformed yet?
  4561. Path integrals with sources
  4562. Double Slit Question
  4563. Electron waves and photons?
  4564. Indistinguishable particles and entanglement
  4565. Indistinguishable particles and fields
  4566. Decoherence
  4567. Does the wave–particle duality apply only to electrons and photons?
  4568. laser
  4569. simple harmonic oscillator - scaled variables
  4570. Are clicks proof of single photons?
  4571. Introduction to quantum mechanics
  4572. What is observable in a relativistic quantum field theory?
  4573. Heisenberg's 1927 paper on uncertainty
  4574. The Hamilton-Jacobi equation
  4575. Average occupancy in systems
  4576. Use of potentials in Quantum theory
  4577. Quantum Coherence - matter or energy?
  4578. resonant transfer of energy
  4579. How to solve this photoelectric equation involving specific heat capacity
  4580. Some very simple double slit experiment questions
  4581. Wave function of water
  4582. Chicken or the Egg
  4583. What happens if I shake the nucleus of a atom at some frequency?
  4584. Time Dilation in Particles
  4585. What's wrong with this local realistic counter-example to Bell's theorem?
  4586. Another MWI question
  4587. Is retro-causality a science fact?
  4588. Riemann vs. Lebesgue integral in QM
  4589. Product of Dirac Spinors
  4590. DarMM: What is renormalization?
  4591. Conditions for translational invariance in space/time for a 2-point function?
  4592. Exchange Interaction - Helium
  4593. Tight Binding Description of Graphene (Hamiltonian and Overlap Matrix)
  4594. Q.M., Q.M.+Spin, Q.M.+Relativity; C^1, C^2, C^4, why ?
  4595. Normalizing a wave function, what does it mean?
  4596. Trouble understanding a Peskin-Schroeder text
  4597. Quantum Exam Review
  4598. Quantum Optics and Coherence Functions
  4599. Helium Spin Triplet
  4600. Derive ginzburg-landau equation from BCS
  4601. dBB versus EPR and GHZ
  4602. are spin-up and spin-down electrons distinguishable or indistinguishable?
  4603. Decoupled trial wavefunctions in varational principle
  4604. Mystery history of double-slit experiment with electrons ..
  4605. Hamiltonians and C^*-algebra automorphisms
  4606. Does photon spin imply its polarization
  4607. Second Quantization
  4608. Why quantum field theory is not called quantum mechanics of changeable number particl
  4609. Novice question on Quantum Mechanics
  4610. Relation between position of detector and basis of angular momentum
  4611. Laser light an example of quantum coherence?
  4612. Looking for the name of a process.
  4613. Many Boson Wavefunction (Non-Interacting)
  4614. Density Functional Theory and the Local Density Approximation
  4615. double slit experiment
  4616. A question about Operators
  4617. Quantum field as operators
  4618. What was the quantum state at t=0 (big bang). Many thanks.
  4619. Time evolution in quantum field theories
  4620. gauge symmetry for spin 1/2 fields
  4621. Question about the Pauli exclusion principle.
  4622. Positronium, Hydrogen, Schrodinger Equation
  4623. entagled pair and speed of light
  4624. propagator
  4625. Where can I learn how to manipulate operators?
  4626. dot product within the commutator
  4627. Schrodinger equation for cylindrical quantum wires
  4628. Covariant derivative in gauge theory
  4629. The maximum size of an object which can be teleported
  4630. Gravitational Charge
  4631. Correct units to derive Ryberg Constant in ev
  4632. Quantum entanglement vs relativity of time
  4633. [QM] Simple Clarification
  4634. New Feynman Rules in QED from Counterterms
  4635. SR and multiparticles.
  4636. Challenge to dBB
  4637. Infinite Charged Electron in QFT
  4638. Csco
  4639. Interpretation of correlator in 0+1 QFT
  4640. QFT and renormalization
  4641. How is the answer obtained from quantum calculations?
  4642. Question on a 2nd time dimension
  4643. Stuck in angular momentum
  4644. What happens to electron spin under Lorentz transformation?
  4645. Bra-ket algebra problems
  4646. mathematical models, the 'real world' and quantum mechanics
  4647. Weyl rule.
  4648. how do i perform a measurement of a many body system?
  4649. Schrodinger's equation for H atom.. Some questions
  4650. Planck´s original deduction
  4651. Are More Complicated Lagrangians "Wrong"?
  4652. Node and Nodless wavefunction???
  4653. Atomic exitations, difference between photon and electron collision?
  4654. Quantum Field Theory
  4655. Why is a photon released when an electron moves to a more stable level
  4656. LSZ reduction coeffs etc (Srednicki)
  4657. Elementary Scattering Problem
  4658. laser
  4659. fourier transform/propagator
  4660. Virtual Particles and Radioactivity
  4661. Richard Borcherds on QFT
  4662. QED interaction gets 6x stronger but occurs at 6x fewer points.
  4663. Heat of a solid under high pressure
  4664. Photon directions
  4665. Bohr radius validated?
  4666. Quantum Mechanics
  4667. Two photon decay questions
  4668. Stern-Gerlach Filters etc
  4669. Integrals
  4670. Entangled Lotto Game
  4671. Are there degrees of quantum entanglement?
  4672. Magnetic field and Skin Effect
  4673. Green's Functions & Density of States
  4674. g-factor Relation to Energy Perturbations
  4675. How many periods of a photon are involved in proton energy level transistion?
  4676. Potential Well
  4677. Wave packet and repeat length
  4678. How are entangled particles captured and contained?
  4679. Is all electromagnetic radiation quantized?
  4680. An awesome video on the double slit experiment
  4681. Excess Energy
  4682. Stern Gerlach Experiment, bra(c)kets etc
  4683. How is a quantum computer simulated?
  4684. Fermi energy of metal contacts
  4685. Quantum optics
  4686. Blackbody radiation
  4687. What stage are we at in Quantum Mechanics?
  4688. Why discontinue(quantum)characteristic ultimately relates with probability in QM?
  4689. Why anti-commutation relation
  4690. the probability functional description of a wave..!
  4691. Symmetry, Lagrangian, Qm, and diff eqs.
  4692. The possibility of a Casimir Effect Battery
  4693. Can a sinlge photon be polarised?
  4694. Connection between Free Energy and Action
  4695. Effective action from the background field
  4696. Linear Equations & Quantum Mechanics
  4697. Smallest distance
  4698. direct products in quantum mechanics
  4699. What does the probabilistic interpretation of QM claim?
  4700. How real is reality?!!!
  4701. QED functions E(a to b) and P(a to b)
  4702. Pauli exclusion principle, quantum states, and lasers?
  4703. overlap integrals and eigenstates problem
  4704. newbie problem about <a|b> and |a> <b|
  4705. Solution to uncertainty principle
  4706. Do higher spin particles obey Klein-Gordon or Dirac equations?
  4707. Quantum/Computational Chemistry
  4708. definition of "indistinct" in pauli exclusion principle
  4709. probablity wave
  4710. two-particle wave function.
  4711. questions about photons
  4712. Pure/mixed states
  4713. what is m-scheme
  4714. what is quantum entanglement?
  4715. Canonical transformation in Hamiltonian
  4716. Thinking about the uncertainty principle.
  4717. Why are there several gauge fixing choice for gauge symmetry fields?
  4718. Quantum harmonic oscillators
  4719. why is plasma frequency in ev and not hz
  4720. using the drude equation to find the dielectric function
  4721. double slit experiment
  4722. quantum entanglement question
  4723. Differential equations in Quantum Mechanics
  4724. Nonlinear optics: electric dipole moment operator
  4725. Electron Self Energy
  4726. Thought experiment: Observation via Recording
  4727. Define: Probability
  4728. repulsive Casimir effect
  4729. correlation functions
  4730. Photon antibunching
  4731. regularization by differentiation respect to a parameter
  4732. The uncertainty principle
  4733. what does this mean...
  4734. Proof Scalar action is conformally invariant
  4735. How do I evalutate this?
  4736. If light is quantized, why are EM spectrum and Blackbody spectrum continuous?
  4737. Barrier inside a finite well
  4738. When matter and anti-matter collide, in what form is the resulting energy?
  4739. How to measure which slit a photon went through
  4740. Mathematical basis of QM
  4741. Indistinguishability and entanglement
  4742. Do electrons make containers?
  4743. Proving projection operator
  4744. Non-hermiticity of fourth power of momentum operator in L=0 state of hydrigen atom
  4745. Validity of this expression
  4746. Can the future affect the past
  4747. Another superluminal paradox?
  4748. Which of the following particles would have the shortest wavelength?
  4749. Which symmetry follows Ward-Takahashi identity?
  4750. De broglie explanation?
  4751. Physicsal meaning of Expectation of two variables
  4752. Classical and quantum physics.
  4753. How to know if two photons are entangled?
  4754. Rayleigh Ritz with two Particles
  4755. Atom and sublevels
  4756. Confusing indices...
  4757. Gamma matrices
  4758. Geometric phase for mixed states
  4759. Doesn't Electron Configuration Prove The Universe Has Three Dimensions
  4760. Vacuum Energy and the Casmir Plate and Electromagnetics
  4761. Trace Theorems and Dirac Matrices
  4762. Where do all the interfered photons go?
  4763. discrete space
  4764. What is coincidence time window
  4765. quantum interpretation of Ring Laser Interferometry
  4766. Joy Christian, "Disproof of Bell's Theorem"
  4767. Causes Virtual Particles or Vacuum Energy or Other?
  4768. Gravity Doesn't Exist
  4769. Indices
  4770. Understanding the quadratic Stark effect
  4771. Raman wavefunction
  4772. One-photon interference
  4773. Energy-Time uncertainty: observer's clock or observed's?
  4774. How do Heisenberg Uncertainty & de Broglie wavelength apply to atom trap?
  4775. Grassman number in functional quantization?
  4776. What corresponds to a static field in QFT
  4777. Photoelectric Effect
  4778. Construction of asymptotic states in QFT
  4779. Can we apply superposition principle for states in Fock space?
  4780. Could anyone derive an assertion found in "light and matter, a strange theory"?
  4781. visibility of a specific waveleangth
  4782. in the reality how I perform the many kind of measurements, like operators p,q,E..
  4783. Time Symmetric Quantum Mechanics
  4784. Preparation of Single qubit mixed states
  4785. Perturbation to Mercury
  4786. Adroit Measurements in Reaching Conclusion
  4787. 2 particles in a 1-dimensional box
  4788. A question about quantum tunnelling
  4789. Quantizing the EM-field
  4790. about L(L+1)
  4791. wavefunction
  4792. Project - Quantum Dosimeter (CERN)
  4793. Is electron spin a perpetual motion?
  4794. Wavefunction
  4795. Renormalisation constants in QED
  4796. An question about antiunitary operator
  4797. Quantum Entanglement and Communication
  4798. 1st to 2nd quantization, potential approximates interactions?
  4799. Psi and probability
  4800. Shape Resonance
  4801. Nonlinear measurements - HUP violation or not?
  4802. Difference Between Non-Seperability and Non-Locality?
  4803. Backwards causation: Is there any proof really against it?
  4804. work function of a metal - absorbtion of electrons
  4805. The Efficiency Loophole: A Local Hidden Variables Theory?
  4806. A couple of entanglment questions
  4807. Is it possible to create a Positron - Electron cooper pair?
  4808. Crucial step Quantum mechanics
  4809. Finding energy of an electron analytically
  4810. Van der Waals Forces
  4811. Why the divergence of a diagram when superficial degree of divergence D=0 is Ln(lambd
  4812. Quantum Field Theory and Perturbation Approximation
  4813. Particles are really planck size?
  4814. Doubt in Sec 4.2 of Peskin Schroeder-Perturbative Expansion of Correlation Functions
  4815. two df for massless particles
  4816. Complex Conjugate applied to operators?
  4817. An Interesting New Test of Realism
  4818. probability density of photons
  4819. Potential Wells...
  4820. Another doubt in Peskin Schroeder Sec 4.2
  4821. Irreducible set
  4822. Position of an electron with exactly 0 momentum
  4823. Non-Perturbative QFT without Virtual Particles
  4824. What oscillates in an electron?
  4825. Ionization energy of electrons?
  4826. Fermat's Principle Explained
  4827. How does diffraction cause interference
  4828. Parametric Down-conversion
  4829. Momentum of an electron
  4830. Entangled Particle Communication (again)
  4831. Even Real Particles don't exist... Aage Bohr
  4832. Correspondence principle in arbitrary coordinates
  4833. Quantum Statistical Mechanics
  4834. Why does the uncertainty principle imply randomness
  4835. Non-linear operators
  4836. Electrons, centrifugal force
  4837. Young Double Slit experiment, single photons
  4838. Normal Lines and Light
  4839. Lorentz invariant lagrangian density
  4840. Two Nature Articles - Quick Questions
  4841. Why does the stopping potential not depend on the intensity of incident light?
  4842. de Broglie and Bohr.
  4843. Wave energies
  4844. Fermi's Golden Rule - Inelastic collision probability
  4845. Free Electron Density of States question
  4846. Consciousness: Objective - Subjective
  4847. Can light be polarized in...
  4848. Electromagnetic Induced Transparency ?
  4849. why is the lagrangian polynomial in fields and derivatives
  4850. Understanding de Broglie formula for massless particles
  4851. explicit form for representing "two spin 1/2 system"
  4852. Why Overlapping divergences are troublesome ??
  4853. Identical particle sate?
  4854. Sakurai's proof of the Optical Theorem
  4855. Mixed States in Polarisation
  4856. What is space quantization?
  4857. Bell's theorem and QM: Peres' conclusion and terminology?
  4858. incident waves of kittens
  4859. Bell's theorem and the DrChinese Challenge?
  4860. QED Predictions of fine structure constant and g-factor
  4861. Are Chemical Reactions Quantumly Indeterminate?
  4862. How to Calculate Vibronic Couplings Quantitatively????
  4863. absorbtion lines in spectrum question
  4864. Causality question
  4865. Stochastics mechanics and early Universe
  4866. Quantum pencil
  4867. conceptual question on wave-particle duality (electron microscope)
  4868. "THE STRANGE THEORY OF LIGHT AND MATTER " and uncertainty principle
  4869. Perturbation, still confused.
  4870. Double-Slit Experiment and Michelson Interferometer
  4871. What is Normalization?
  4872. Square well/barrier
  4873. Quantum optics
  4874. Wavefunction conjugate
  4875. Buckyball Double Slit Experiment
  4876. Why 2-point correlation function diagram have only two external legs?
  4877. Quantized Conductance
  4878. 2 order correlation
  4879. electron diffraction from crystals
  4880. Rigid Rotor Question
  4881. Atoms absorbing photons
  4882. Why we know the renormalization work to all order in renormalizable theory?
  4883. Bell's Theorem, EPRB, QM, spin-1/2 particles, basic arithmetic: In reply
  4884. Commutators In quantum...!!!!!!
  4885. Review Articles Bell Test experiments
  4886. Laser Light & HUP
  4887. why dont the quarks in neutrons annhialate?
  4888. exclusion principle
  4889. Reversibility on Microscopic Level
  4890. Show this is a vector
  4891. Lippmann-Schwinger equation
  4892. photon vs the electric field E and magnetic field B
  4893. Many-worlds true quantum event generator
  4894. Time dependent qubit
  4895. Pure State without Superposition possible?
  4896. Event ready detectors
  4897. How to reach the conclusion that L=0 and S=0 if the shell is filled?
  4898. Is this why atoms emit light?
  4899. debye heat capacity formula
  4900. Quantum fluctuations and Inflation
  4901. Idler behavior post signal detection in DCQE
  4902. Predictivity sieves questions
  4903. [Novice] Feynman Diagram for Electron Excitation
  4904. clebsch Gordan coordinates
  4905. Can grandpa understand the Bell's Theorem?
  4906. Role of particle's diameter in Quantum Mechanics
  4907. polarizability and permittivity
  4908. particle in abox : continuous functions problem
  4909. z diode noise randomness
  4910. Free Particle ON a Ring
  4911. Why isn't commutation transitive?
  4912. resonance
  4913. Can Earth's Electromagnetic field block asteroids?
  4914. Wavefunction collapse
  4915. Wavevector in infinite square well
  4916. Average of momentum for stationary state
  4917. Decoherence, Coherence, Pure State, Mixed State
  4918. [Novice] Young's Double Slit Experiment and the Quantum Cult
  4919. Representing a wavefunction using bases
  4920. Second quantization derivation of spin-orbit coupling.
  4921. Confused-Aharanov-Bohm Effect
  4922. Weight diagrams and Lie algebras
  4923. A Copenhagen Bug
  4924. Bosons and quantum states
  4925. Can a classical model for electron satisfy requirements of quantum mechanics?
  4926. London dispersion force
  4927. Just wondering....
  4928. Can someone explain, simply, hidden nonlocality/locality? EPR Paradox?
  4929. Klein Paradox
  4930. 2-Slit Experiment: Interference dissapears when detecting which slit the photon took?
  4931. renormalization as a dielectric
  4932. Adiabatic quantum computation
  4933. Fine structure, exact formula. Dirac.
  4934. POtential and wavefunction
  4935. Bell violation with extra particles
  4936. Quantum Interpretation Poll (2011)
  4937. Quantum theory has affected technological advances?
  4938. Question about uncertainty princple?
  4939. Latent heat-quantum approach
  4940. far-apart double slit experiment
  4941. Helium Spectrum
  4942. The Refutation of Bohmian Mechanics
  4943. how can i understand this !
  4944. Adiabatic invariance in QM
  4945. Solving the Schrodinger equation
  4946. confused about Dirac particles
  4947. Where do the extra particles go
  4948. Question about Double Slit Experiment with Electrons
  4949. What's wrong with this FTL experiment?
  4950. is time reversal broken in an atom with nonzero magnetic moment?
  4951. Time Independent Schrödinger equation.
  4952. Why Hermitian instead of self-adjoint?
  4953. Why the LSZ formula?
  4954. Definition of 'good quantum number' after parity violation
  4955. Pertubation theory
  4956. Why do we associate the energy eigenstates with the "wavefunction" and "position"?
  4957. Discussion of A. Neumaier's claim that classical EM can violate Bell's theorem
  4958. Past Particles
  4959. Neumaier Thermal Interpretation of QM, valid?
  4960. Quantum Eraser & 50% information eraser
  4961. Bell tests: Singlet vs Triplet State
  4962. Range of Different Photoelectron Kinetic Energies?: Photoelectric Effect
  4963. Probabilistic interpretation of wave function
  4964. Measurements corresponding to Exchange Operator
  4965. Finite-Temperature Schrödinger's equation
  4966. Born Rule and Determinism
  4967. Why the minima of potential of classical Lagrangian called ''vacuum expectation''?
  4968. trace of a matrix
  4969. Why does x^4 potential has a minimum ground state energy out of all x^n potentials?
  4970. 100% correlations
  4971. Electron Wave Functions
  4972. Center of Mass in QM?
  4973. Bohr model-postulates
  4974. Why is there no constant magnetic dipole-dipole interaction?
  4975. "Electron photographed for the first time"
  4976. direction of electron's total magnetic dipole moment
  4977. Many worlds and probability amplitude. What does it represent?
  4978. Uncertainty principle with/out detectors
  4979. Spin
  4980. Any result that conflicts with the below theory of entanglement?
  4981. Density matrix and von Neumann entropy -- why does basis matter?
  4982. Coherent electrons in double slit experiment?
  4983. Path integral formulation of non-relativistic quantum mechanics
  4984. Would like professional advice on a sci fi story.
  4985. Is wave-function collapse a REAL incident
  4986. QM Interpretations
  4987. Quantum Temperature Relations?
  4988. Ballentine: Statistical Interpretation of QM
  4989. (in)coherent superposition and quantum erasure
  4990. What is a application of linear sigma model?
  4991. Why Do We Assume Ultraviolet Divergences are Physical
  4992. [Novice] My bra-ket.
  4993. Validity of Derivations of Schrödinger's Equation
  4994. How can particles undergo EM interactions *and* have definite strong isospin?
  4995. Infinite Square Well Width
  4996. modifying the DCQE
  4997. Photons
  4998. Implications of Quantum Eraser, Delayed Choice, etc.
  4999. The end of uncertainty
  5000. How Many Photons in a Light Wave