View Full Version : Quantum Physics
- goldstein schodinger's equation Lagragian problem.
- velocity operator inconsistency and discrete particle
- Decoherence and State Vector Reduction
- [Q]Momentum eigenstate normailization
- closure rule
- superposition of eigenstates in QM
- Scattering and bound states
- The state of a particle changes when viewed
- spacetime in subatomic level
- Quantum Computer Qubits
- Wave functions
- Question about delayed choice quantum eraser
- I am newb please explain this about Electrons
- Gaussian Wavepackets
- Quantum world and time
- reference frames?
- commutator in QM vs. Lie brackets in DG
- matter/antimatter asymmetry
- Quantum tunneling
- velocity of electrons
- Dirac theory
- Parametric down conversion
- ESSW and Hiley's papers
- Dirac Delta function
- EPR paradox
- Is the singlet state just a special case of mixture?
- Gauge Boson Propagators in Spontaneously Broken Gauge Theories
- particle-wave duality
- Dipole moment operator.
- quantum computing
- Commuting creation and annihilation operators
- Pauli matrices
- Planck's law and ultraviolet catastrophe
- Wick rotation
- Wavefunction of a 2-particle system.
- Friction at the quantum level
- quantum suicide
- Longest photon wavelength observed?
- Spin from QM and SR?
- How to dertermine the Hamiltonian matrix
- Ground State Energy of an Electron
- Transformation of energy space to momentum space
- What is a Mixed State?
- QM Notation questions
- Decoherence and entropy
- energy eigenstates
- Resonance states and complex energies
- Calculation of scattering amplitude ratio for two different angles
- show me the wave function
- collisions in QM
- Eigenkets of a function of a hermitian operator
- Crossing nodes of wavefunction...
- Paradox seemingly violating relativity
- Solutions of TISE - is it all about groping in the dark?
- Wave packet conceptual question
- Classical Explanation for Photoelectric Effect
- Quantum Harmonic Oscillator
- Entanglement and the double slit experiment
- Holevo Additivity.
- Force on the walls of a rectangular potential box exerted by a particle inside it
- why does spin go?
- PDC Type I: 1+1=3?
- Feynman Diagram's
- What is a virtual particle?
- Particle & Anti-Particle Question
- Basic Double Slit Question
- refraction due to attractive potential
- Off the mass shell and external fields
- Bound states for a half harmonic oscillator
- Dimension of Hilbert Space in Quantum Mechanics
- integral over an operator
- faster then the speed of light
- energy
- Hermitian operator
- The necessity of the 2nd quantization?
- how to get QFT operator expectation values?
- Dimensions and the Generating Functional
- difference between ionization energy and photoelectric effect?
- The photon vs Maxwell's Equations
- Quick question: 4 gradient
- Is light an electromagnetic radiation. If so< then isn't it casued by....
- Variational principle convergence
- Proton-electron interactions interms of photons
- Purely imaginary bound state wave functions?
- The "Borderworld" between Quantum and Classical Physics
- what is retrocausality?
- how to calculate the many-body wavefunction
- How To Entangle Particles?
- Coupled quantum harmonic oscillators
- Non-covariant parts of the propagator?
- Double-slit experiment - a couple of questions
- HELP! Can you find an electron in the exact middle of an S orbital?
- Fermi's Golden Rule and Density of States
- Heisenberg Uncertainty Principal with regards to electron orbits
- What is light?
- What part of the atom creates light??
- Compton scattering elastic?
- Canonical quantization with constraints
- could we do QM without time evolution ??
- conformal dimension of a scalar function?
- Gurtzwiller formula
- 2d Electron Gas
- PBS on entanglement
- Normalizing the Schrödinger Equation
- Coincidence and Single Rate detection in Quantum Eraser experiments
- Encryption v.s. quantum computers
- Proof of a commutator algebra exp(A)exp(B)=exp(B)exp(A)exp([A,B])
- "equating" the uncertainty relations?
- what is quantum physics?
- What if V(x) is complex?
- Non-commutative Phase space
- How does one emit a single photon?
- Proof that the eigenfunctions of a self-adjoint operator form a complete set.
- frequency
- densely defined operators of Fock space
- Momentum in x-basis?
- Orbiting photon pairs
- Basic QM question: Why do we describe free particles using Aexp(ikx) ?
- Verifying a simple QFT derivation in Peskin's
- Spread fo wavefunctions - filling the universe?
- Is interference always present in a single slit setup?
- Density of states and Charging prob....
- 2deg
- should we think a free particle as a particle in an infinitely big box?
- Testing if the momentum operator is Hermitian
- Exclusion principle in quantum gasses
- Simple QM question
- Imaginary shifts in QFT
- Gravity Propagation Experiment.
- questions on Feynman's view on Double slit experiment
- Differing formulae for power emission
- ground state energy of hydrogen atom
- Why 3n-dimensional function?
- Relativistic Quantum Mechanics
- matter waves as standing waves
- Wave function in momentum representation
- eigen function, eigen value, eigen vector
- Semiconductor Band Gap
- Forrest Gump meets the Elitzur-Vaidman bomb tester
- particle-only description of single-photon double-slit experiments
- Single photon and the double slit
- On General Measure of Entanglement
- Question on Time Reversal and Degeneracy
- Integral of a delta function from -infinity to 0 or 0 to +infinity
- transpose of Grassmanian variables
- Electron interference in double-slit experiment
- antimatter from time-traveling electrons
- E,H and wave function
- Weak interaction and helicity
- Schrodinger Equation and Energy Quantization
- Spin sum
- Group Theroy/QM
- Bohmian velocity measurable?
- theory of electron spin
- Riemann-Hilbert space
- Delta function of a function with multiple zeros
- Current work in QCD
- (1/2,1/2) representation and photon
- Numerical solution of Schrodinger equation
- time delay for evanescent wave to spread (photon tunnelling)
- Superstring Field / Unified Field
- Relation between potential and bound states in Schrodinger equation.
- Greiner's QCD book
- Electron Dephasing
- Wiens scaling law
- Come One, Come All, and Cast Your Vote
- how short can a pulse be?
- Permuting Qubits
- Quantum Data:Theoretical Requirements
- Harmonic Oscillator & Schrodinger
- please forgive my ignorance?
- Are fields and uncertainty ubiquitous?
- Continuing entanglement after first measurement
- Goldstone bosons 1st order phase transition
- Schwinger-Dyson equation help
- Fock state
- Obama has chosen his VP, the universe has decohered/collapsed
- Zurek's paper
- Easy (I think) quantum non-locality question for the experts
- Conservation of momentum and how to entangle
- Why the need to quantize?
- What proof is there that light has zero mass??
- Double slit experiment - QM or wave?
- references for quantum chromodynamics
- MWI and FTL Communication Possibilities
- Continuing Dopfer discussion
- gross pitaevskii infinite well
- What is a positive definite Hamiltonian?
- how to convert m meter into recoils
- QM GR and the vaccum
- Photons as waves
- Where do the free electrons go and how do I find the energy level?
- Spontaneous breaking of the local gauge symmetry(such as that in superconductors)?
- Best possible test which differentiates qubits
- Bohmian "surreal" trajectories
- Distribution of speeds in a molecular beam.
- momentum flow in QED vertex
- Is the eigenstates of p right?
- The photoelectric effect
- Superluminal Communication
- Is the Conservation of Energy ever violated?
- euclidean dirac operator
- Broken Symmetries (Weinberg p215)
- When does entanglement end?
- Problem understanding a statement in Bose Statistics
- klein-gordan eqn
- What happens to qubits if Swap Test fails?
- weak "force"
- Changing the spin of a Quantum particle
- Dirac Equation question
- dimensional regularization
- diagramatic perturbative expansion of QCD
- Running couplings
- Geneva University speed of entanglement results
- Effect before Cause: Is it possible?
- Doesn't QM allow for FTL travel?
- momentum cut-off acepted in renormalization ?
- photon experiment
- Energy levels in finite 1d well
- Scalar Electromagnetics
- knock the uncertainty down!
- Energy of Single Photon
- Field Operators in Klein-Gordon theory
- Uncollapsing a wavefunction (demo in low temp cond matter lab)
- mass shell
- Time propagation
- Quantum particle empirical status
- Graviton and photon point particles in reality
- Fourier Transform of a wavefunction
- LHC & Chronons
- basic questions on quantum scattering
- Feynman slash notation
- Quantum well levels
- Theories of Light
- how small does sub-atomic universe go?
- Feyman Diagram - Represent QED model(s)?
- entanglement and polarization
- Basic question about velocities of particles
- mean field indeces
- number of distinct diagrams.
- Rayleigh one-two photon, dipole approx
- Why Irreducibel Representations?
- group and phase velocity
- Two interacting electrons in 1D infinite well
- Disconnected diagram Feynman rules momentum space
- Proof of state "collapse?
- kinetic lagrangian for non-abelian gauge theories
- Spin & the Fermi Sea
- Practical applications of QM
- Feynman's Interference Experiment: Detector versus Photon Source
- How do you entangle photons?
- My First Double Slit Experiment
- Logic and causality???
- stern gerlach J=1 problem
- [SOLVED] Expressing a matrix in the eigenbasis of another..in QM
- quantum mechanics vs general relativity
- Diagonalizing a square matrix with degenerate eigenvalues
- Help understanding Nuclear physics concepts
- Davisson & Germer experiment question
- Vacuum state of the Klein-Gordon field
- Photons through Glass
- Quantum Entanglement and retrocausality
- Magnetic Quantum number
- Bohr's H-Atom
- Distance between atoms
- Bras and Kets
- Definition of Delta as a Sum
- Coherent States of the Harmonic Oscillator
- Physics Presentation
- If we had a microscope
- Caution: may-be Rumor
- Basic wave equation question
- Photon Helicity
- Quantum computers, quick question
- Finite Well Iterative Process
- Some Bohm questions
- Is there any reason the Universe must have a wave function?
- Quantum Aspects Of Equations For Motion
- Wave function of a system
- Outcome unknown
- Weak force
- why spinor bec is called ''spinor bec''?
- Renormalization
- Hamiltonian of a system
- Fermions (HELP PLEASE)
- Massless free field equation --> Maxwell's eqn.
- HUP inside the atom
- energy in packets
- density operator
- Double slit
- Dirac delta spherical potential
- ghosts
- derivative inside, outside time ordering
- Line Spectra Question
- Questions about some material from Dirac
- Particle-wave function
- Differentiation of an exponential with operators (Peskin p.84)
- Derive schrodinger equatiom from variational principle?
- Picture of Entanglement
- Measurement and Stern Gerlach Experiments...review articles?
- Jordan-Wigner transformation
- Renormalisability and spin?
- A question of phase density
- Chirality and helicity
- Entanglement
- Quantum computing and Nanoscale "CAD"
- Detecting Single Photon Energy
- Charles Stross and Quantum Teleportation
- Pair Annihilation
- Gravity and its effect on particles/molecules and bonds.
- Spin Addition
- Quantum Teleporation and Nuclear Chemistry
- quantum attraction by exchange of particles
- Construction of SU(3) multipletts, implication of Gell-Mann-Nishijima
- basic question on electron, ion and photon excitation
- on current algebras
- Renormalization in Fluidodynamics
- Pair Production
- Projection postulate - can it be verified?
- Is there a description of collapse in QFT ?
- Schroedinger's cat
- Commuting Operators in Sequential Stern Gerlach Experiment
- Is probability a Quantum Observable ?
- if photons have no mass, then how can they travel the speed of light?
- Pauli exclusion principle question
- A non-normalized state
- Harmonic Oscillator
- what the state of Quantum mechanics (QM) is?
- Polarization of Light
- about the floquet theorem
- Mach-Zehnder Interferometer at Wiki Question
- Photons Detector not yielding "which-path" info.
- QED Lagrangian lead to self-interaction?
- Differentiating Qubits
- Pauli-Lubanski
- Quantum Digital Signature
- Laser Power Increase?
- Planck's Constant...."h"
- Plasmons and Van der Waals friction
- Psi function of a photon?
- R. Slansky, Group theory for unified model building
- Dimensional Regularization of an Integral
- Time depending quantum solution
- Exclusion principle question
- Coexistence of QT and Relativity
- particle in a 1-D box
- Normal ordering and Wick contraction?
- Formulation of Non-relativistic QED
- Feynman's QED Lectures: Questions about partial reflection
- Photon absorption process
- QFT and local gauge invariance
- potential well& wave packet
- QFT poincare generator
- counter example to the Bloch's theorem?
- Does the uncertainty principle break symmetry?
- Questions about Peskin QFT
- Number of components of Dirac spinor in arbitrary dimensions.
- The dangers of heuristic reasoning
- How do photons interfere with each other/themselves?
- Why the Born Rule?
- laser/moving mirror
- Parity vs. group theory???
- Field operators - how do they work?
- Truly Random?
- light not polarized
- Photoemission in diatomic molecules
- question about refraction experiments
- rotating Bose gases, quantum vortices
- Spooky entanglement
- Photon spin - experimental evidence
- Working with Dirac matrices
- Does a photon bounce?
- diagonal polarizator
- Stark Effect using first order variation theory.
- Singlets and gauge invariance
- Black body radiation
- DIY double-slit with strange results
- Feynman's perspective on negative energy states and pair creation
- Electrons
- <p^(3/2)>
- Lagrangians in Quantum Mechanics
- what happens
- Heisenbergs Uncertainty Principle
- Feynman's perspective on the double slit...
- Photons are massless?
- FAQ - "Do Photons Move Slower in a Solid Medium?"
- Negative energy in Dirac equation
- pauli exclusion principle
- Do protons and neutrons have a wavefunctions?
- Does anyone know what is used to calculate the atomic orbitals such as s,p,d and f?
- Spectral Lines - How and Why?
- A paradox in Planck's Law?
- vectors in Hilbert space
- virtual particles
- coarse-grained entropy and heterogeneity?
- Help
- Massless Schrödinger equation...
- Exchange potential operator?
- Degenerate matter total energy...
- Particle in potential well
- Random symmetry breakings
- How to get the prefactor for the Planck Distribution
- What is the smallest Quantum of Energy?
- 4-momentum in relativistic QM
- Orthogonal Integral
- Some Confusion with Path Integrals
- negative energy?
- Quantum Zeno effect
- Particles and Fields – a neverending story...
- What's wrong with Heisenberg's microscope?
- The physical meaning of Schrödinger's equation
- Expectation Value
- The Mach-Zehnder interferometer experiment
- Are antiparticles visible?
- How close are mankind to creating a quantum computer?
- The Uncertainty Principle
- Viruses and Quantum Mechanical Spreading
- Looking for resources to do with energy transfer.
- Quantum tunneling
- Uncertainity Principle
- Matter Waves As Standing Waves
- 3.) Probability
- Wave Function Zero At Infinity?
- compton effect
- Very basic questions - Hamiltonian
- Difference between Mixed State and Superposition
- Total Angular Momentum of Many Particles
- Graviton energy and frequency/wavelength?
- linearity of momentum operator
- Paradox?
- Special relativity and QM
- Separating Hamiltonian functions. Helium atom.
- The Principle of Least Action in Quantum Physics
- Shifting Constraints in the Particle in a Box System
- Feynman diagrams
- basic understanding
- Grover's algorithm on entangled states
- invariant measures
- The Photoelectric Effect, Photon Duality, and The Double-Slit Experiment
- Trying to plot de Broglie standing wave.
- How to union the path
- Bras and Kets and Tensors
- Electromagentic Field vs. Gravity Field
- Change of Basis for Spin
- QM vs. SR
- Angular Momentum Question
- Quick Braket Questions
- macroscopic quantum mechanics
- What kind of wave is associated with particles , in wave particle duality?
- Hamiltonian in terms of ladders, question.
- 3.)tunnel and photoelectric effects
- 2.)energy Density Of Radiations
- 1)yukawa Potential
- Observation and the Double Slit Expt
- Mean lifetime of a particle (quantum)
- phase velocity!!!!
- Can vacuum be considered as excitable medium?
- does light have mass?
- Abstract Schrödinger's equation in QFT
- point entity?
- Spectral Zeta function
- Operator and Commutor Question
- Another photoelectric effect related question
- Measuring Quantum State
- Difference Equation
- Bessel Parseval Relation?
- Can one photon be anywhere in Universe?
- Quick Fourier-Like Question
- What is the operator for velocity in spherical coordinates?
- Question regarding Schroedinger's Equation
- QFT Conundrum
- Plank's constant: What is it?
- Normalisation
- strange definition of regularization of Operators
- why do particles annhillate with their particles???
- Borrowing energy?
- Quantum State
- Heisenbergs Uncertainty for light
- Fields and energy question
- help about the exchange energy
- Beginner to Braket State Vectors
- recognizing a product of two 3d rotations (matrices)
- Last step of a Schrodinger derivation
- Dopler Shift and Photon Number
- Why do different frequency EM Waves behave different ?
- Propagator/transition amplitude through intermediate integrations
- technical question about Nikolic' Quantum Myths
- Uncertainty Principle
- Argument about inteference experiments : help me win!
- Wave Function
- Ladder Operator/hermiticity
- How abou the hidden variable theory?
- UV versus IR temp.
- What if planck's constant changed?
- Weak field tensor
- And God said .... ?
- Destroying interference pattern of classical waves
- How to prove Coleman's formula for the ratio of two determinants?
- The Interpretation of Quantum Mechanics
- QM calculation of vacuum energy
- Frequency- What is it?
- Photoelectric effect on the capacitor
- Quantum Foam Clarification
- Renormalisation Example
- Why did Schrodinger call his equation eigenvalue problem?
- Eigenstates, Eigenblahs, and Eigenpoofs? HELP O.O
- density matrix
- Stern Gerlach Gradient Field Strength
- psi^4 theory
- Question on quadratic fluctuations in the path integral formalism
- the title?? (one of Dirac's books)
- Red Light?
- tunneling through a PE barrier
- Physical Meaning
- A particle in two boxes
- Query
- The speed of light, gravity, strong force, weak force
- Temperature and quantum physics
- Photon theory?
- Another physical question
- Fundamental Question
- electron two slit experiment with gradual "collapse"?
- Natural Eigenbasis composite 2 X Spin 1/2 system
- Planck's Constant
- virtual particles
- The physical meaning of Pauli Spin Matrices
- A practical application of quantum mechanics
- Let's get it right about Electron Waves
- time scale of photon absorption in electron
- Quantum Physics, when is spin-orbit coupling necessary?
- Density matrix of a qubit
- what is the advantage of the truncated wigner approximation?
- energy levels in a potential well
- Classical -> Quantum Generator of Translation
- Feynman- Radiation Resistance
- Hamiltonian & Degeneracy: Conditions
- Wavefunction collapse ==> increase in entropy??
- Can Maxwell's equations describe a single photon?
- Interaction term in Hamiltonian !!!
- Compton scattering in ultrarelativistic limit
- Bound states in 1D potentials
- why permeability equal to unity?
- Many Worlds experimental evidence
- The phase velocity of laser light
- questions about chaos.
- Spontaneous symmetry breaking
- The shape of a heap of sand turns flat after being kicked...
- Equilibrium spacing
- Particle in an infinite potential well, showing the uncertainty in x
- Change the state of system
- spreading wavepacket
- Complex Conjugate of Fourier Transform
- double slit electron experiment
- probability interpretation of QM
- Spin 3/2 Rotation Matrices
- About Schrodinger eq. and the potential step case with E = V0
- Probability amplitudes, de Broglie and Schrödinger
- Qubits
- Simple example of the collapse of the wavefunction?
- Boltzmann Factor in QM Language
- When can we ignore the delta function in th Feynman rules?
- Degrees of Freedom
- Wave-particle duality
- Uncertainty principle
- Schrodinger Equation Question
- Where does phi go in the probability density for hydrogen?
- Hamiltonian Matrix
- quantisation of EM field
- Schrodinger's cat
- Quantum Entanglement!!
- Virtual Photons
- Hamiltonian and Lagrange density
- "standard perturbation theory" - what exactly is meant?
- Why Angular momentum is important?
- Effect preceding cause?
- Possible to make 2 beams of light cancel?
- Light, Vacuum, Speed, and Measurements
- Magnetic corkscrews?
- Radial Momentum Hermitian?
- Microscopy using photons versus electrons
- Schrodingers Cat and time evolution
- Explicit expressions for creation/annihilation operator of the free scalar field
- structure of an atom
- Commutator relations for the Ehrenfest Theorem
- Speed of Probability Waves?
- Klein-Gordon Momentum Question
- Effective action
- Quantum Calculus?
- Qft question (Srednicki)
- Photon Momentum
- Energy and fields
- String stars instead of black holes?
- Photon Pairs - Can photons travel in pairs?
- where do the electrons go??
- Tunneling Electrons
- Vacuum Photocell help
- Quantum Physics
- Coleman's QFT lectures on video!!!
- energy changes of a particle tunneling through a barrier
- What is density matrix of one on two entangled qubits?
- angular momen. conserv
- Is it possible to determine if a photon is entangled?
- Moller scatering
- Can expectation value of observables be imaginary?
- Hawking radiation - please explain
- Clone states, part 2
- Written in the skies: why quantum mechanics might be wrong
- potential commutes with position?
- Cloning quantum states
- Planck's constant and the matter constituents
- Quantum myth 4: The only reality is the measured reality
- Lagrangian Gauge Transformation Q
- klein gordon equation
- Doppler Shift-Matter?
- Information Paradox confirmed?
- Links Between Electromagnetic, Electro Static and Gravitational Fields?
- Electron Precession versus Proton Precession in a Magnetometer?
- Renormalization - a dippy process - R. Feynman
- Scale Relativity
- Heisenberg equation of motion for fermions?
- the speed of light as an absolute max
- [SOLVED] Annihilation, perhaps a defination problem
- [SOLVED] Mandl and Shaw 5.1
- Possible Explanation for Quantum Mechanics?
- Hearing light
- Delayed choice quantum eraser
- A particle in two boxes
- E=hw
- Quantum Tunneling in Atoms
- Time dependant Hamiltonian
- Equation calculating the amplitude of a particle
- Neutron precession?
- Question about Dirac form...
- [SOLVED] Mandl and Shaw 4.3
- Potential well with two electrons
- a semiclassical regime
- Quantum Teleportation
- How do classical and quantum mesh?
- Is a squeezed state keeping as a squeezed state in its evolution?
- Question about the helicity operator
- How to predict the frequency of NMR spectrum
- lagrange multiplier for bose- einstein stats
- Which interpretation best explains the classical limit?
- What is the electric field around a quantum particle?
- Klein-Gordon Approximation Question
- Back Correcting the Uncertaininty Principle?
- Some thought
- Spatial representation of field commutator
- About Fermi energy and Fermi temperature
- how does classical fail in here...
- Quantum Physics for a portable game console
- Schwinger Quantum action
- the expectation of 'z' and 'x+iy'
- Inverse Operator
- 3 space and 1 time
- Excited state of an atom
- Formalisms (in fidelity calculation for quantum teleportation)
- photon as composite of electron and positron
- Light propulsion
- Physicists and their pet theories
- Tapping the Zero Point energy
- is angular momentum always quantized?
- About scattering and bound states
- Can someone explain the idea of degeneracy of orbitals?
- pure qubit question
- Time derivate of the Expectation value for the product of position and momentum ops
- Causal Evolution of Wave Function and Gravity
- quantum myth 3: nature is fundamentally random
- [SOLVED] Baker, Campbell, Hausdorff and all that
- black body radiation
- berry phase in degenerare case
- Transition Probability for a Laser system
- Quantum Mechanics and Determinism
- Bose Condensate
- [SOLVED] Mandl and Shaw 2.5
- Time translation in the heisenberg picture?
- dual gauge curvature
- Novikov self-consistency principle
- waveequation for relativistic particle
- Schwinger-Dyson equations for Quantum Gravity
- [SOLVED] Mandl and Shaw 2.3
- Dirac equation and general covariance
- What would happen to pauli exclusion principle
- Heisenburg and polarization...
- Dual of Maxwell tensor as gauge curvature
- A hamiltonial question...
- Uniqueness of quantization of Dirac field
- Inner product
- question on UV and IR divergences
- Electrostrong Force
- Uncertainty principle puzzle
- Why does quantum entanglement not allow ftl communication
- Plank time, Plank length
- wave-particle duality/double slit experiment
- Particle octet
- Is pauli exclusion principle a force
- help with simple Einstein photon equation
- Heisenberg Undertainty Principle
- Quantum myth 2. time-energy uncertainty
- A question on wave-particle duality
- wave equation -- vector notation
- Photoelectric emission
- Nonlocality - fact of nature
- order of interference
- about the origen of the fundamental theories
- Photons - the smallest building block?
- lower limit for speed
- antiparticle and particle annihilation
- wavefunction of relativistic free particle
- Project Idea? [sadface]
- Electromagnetic radiation
- Many worlds question
- vacuum modes
- Pressure of an electron gas at 0K
- many body problem --> non-interacting particles
- Heisenberg picture
- Many-Worlds
- Questions on neutrinos
- proof that (p + ix) operator is non-hermitian (easy)
- The Hartree Approximation
- Solving Hamiltonian with chain of charge centers?
- Quantum energy levels
- dimensionality
- How important is experience in QM?
- Quantum myth 1. wave-particle duality
- Existence of Virtual Particles
- Dirac's equation and positron
- Interference between photons that never meet
- solving schrodingers numerically
- Atomic Radius
- momentum operator in Schrodinger equation
- renormalizability
- discrete spacetime means discrete momentum ??
- [SOLVED] Evaluate the Klein-Gordon action
- confusing HUP
- the difference between BOSONS and FERMIONS
- Particle Spin
- The necessity of time-dependence in making approximations of the H2+ molecule
- Speculative Physics Periodical
- uncertainty principle and photon
- Preferred basis and prereduction of density matrices
- Derivation of current density in quantum mechanics
- [SOLVED] A question about Photoelectric Effect
- Why forces are modeled as virtual particles in quantum mechanics?
- Plane waves not physical states?
- Backward causation intepretation
- heisenberg
- Calculate something with QFT - I dare you
- Question about density matrices
- [SOLVED] Representation of j=1 rotation matrix
- Creation/annihilation operators
- Atomic Oscillations
- Is quantum theory really necessary?
- bra-ket notation in latex
- Qm => Mwi?
- classical forces and covalent bonding
- Double slit experiment / Quantum interferometer
- Franck-Hertz (my head) Experiment
- Photovoltaic and Superconductivity
- What if Cramer's FTL Experiment Worked?
- Local Gauge Symmetry ??
- quantum thoughts
- About mixed state and pure state
- Intrinsic Spin
- Any bohmian's here?
- Uncertainty principle and vacuum fluctuations
- Question about teleportation...
- Klein-Gordon equation for electro-magnetic field?
- Time evolution and the Dirac Equation
- Question about Planck's constant and De Broglie
- [SOLVED] Momentum-space detection of an Electron (EWP)
- How do we measure particle momentum?
- Double Slit Interference.
- Mwi
- 2nd quantization
- Quantum Non-Locality Subspace Radio
- Virtual Particles
- Uncertainty Principle and Single-Slit Diffraction
- unification 'theory' (small energy)
- [SOLVED] Silly Quantum Physics questions
- Photons - Wavelength and Wavepackets
- Interactions that cause entanglement
- Questions on Electron Orbitals, Wave Packets, and Coherent States
- Nine formulations of Quantum Mechanics
- Bilinear covariants
- Electron State Transistion
- Why is Schrodinger's Cat only a thought experiment?
- Rotation of operators
- Inverse Foourier Transform
- Quantum Mechanics for the 'lay person'
- positronium ground state
- Variation on Dopfer Experiment - Why Won't This Work?
- Vacuum fluctuations
- Schrodinger equation graph help
- What is a plane wave?
- some questions about ion trap.
- Interference in EM waves
- Delayed choice in the Copenhagen interpretation
- Probability of staying in same state after time-dep perturbation?
- Why equal-time commutators?
- Entanglement Explained with Epistomological Probability Theory
- Entanglement + Fusion: need a visual metaphor
- Superliminal Information Transfer
- Elementary particles and fermat's principle
- Energy levels, de Broglie
- [SOLVED] Quantum Field Theory: Field Operators and Lorentz invariance
- Lasers
- Wavefunctions
- Electron and linear potential
- [SOLVED] light diffraction in plasma
- Frequency of a particle? Frequency of what?
- No photon wavefunction?
- Electrons and Photons
- hawking - vacuum fluctuations
- Wigner-Eckart theorem
- Difference between interaction and interference of QM systems
- matter-antimatter annihilation
- Many Worlds and Many Minds
- Help about concurrence of a pure state!
- Momentum from position state vector
- understanding light
- Variability of Zero Point ?
- Underlyinig Unity
- Schrodinger's Equation validity for relativistic particles
- Dislocation density
- Static Charge Photons
- photoelectric effect
- confusion about the contour green's function
- Kinda new to this stuff, is there anything that makes electrons more...
- Clarification
- Rabi oscillations and spin 1/2 systems.
- Jeans' theorem
- where do fermion properties come from?
- Atomic term symbols
- Weak Measurements
- Experimental verification of QFT?
- hawking radiation
- a thesis needed
- Where is my mistake ?
- Simple Quantum Information Question
- Stimulated emission. Energy of the photon inducing the emission.
- Partial Mossbauer effect—Why not?
- what is ''phase diffusion''?
- more ladder operators
- Do photons collide with each other like any other massive object?
- Eigenstates: What would happen if you had a laser aimed at a mirror 45 degrees.......
- Schroedinger Equation (The original article)
- Computational project in quantum physics
- Gamow Energy
- Quantum computer status?
- What if the Bohmian model turned out to be correct?
- uncertainty principle and double-slit interference?
- Is photon emission spherical or linear?
- Basic Questions
- Momentum to Energy Representation in 3D Box
- Question about the notation in Quantum Physics
- a linear theory?
- How can you test if a bipartite system is entangled?
- lambda=h/(mv)
- What exactly is a particle -- in particular in constrast to a wave
- Faster than Light?
- Zeros of the partition function
- Beer-Lambert law
- Conceptual question about wavefunctions/momentum
- Information loss paradox
- Dirac Delta Function Potential (One Dimension)
- does every observable commute with the hamiltonian?
- Angular dependence in QM?
- Quantum coherence of light
- A solution to time dependent SE but not Time independent SE??
- Wave/particle duality: what exactly is a particle?
- Do photons bounce off of each other?
- Polarization, then detection: collapse when?
- a linear theory (quantum theory)?
- Questions on e/m wave longevity
- Learning quantum physics.
- Partial Wave Unitarity ??
- Observations
- FTL communication
- LS-coupled two-body state
- When does Hawking radiation start?
- time-evolution operator
- photon's age? consider two interacting photons in the EPR effect
- Oberver Collapsing Wave funcions vs. Wheeler-Feynman Absorber
- Pauli Exclusion Principle
- Two questions concerning scattering in QED
- EPR Paradox
- Operator transformation
- Electron precession angle
- Path integrals and supposed sum over paths
- Fine structure constant
- wave packets and particles
- time operator
- Second Quantization and Field Operators
- virtual particle energy-momentum
- Photoelectric effect creating optical solitons
- Wha are the advantages of Schwinger Quantum action ?
- Parity
- Connection between Quantum and Classical worlds
- really a virtual particle sea?
- Squeezed gaussian expectation
- Local measurements on an entangled pair. (My understanding)
- Relation between a measurement and the operators
- infinite quantum wave function
- Multiparticle Schrodinger Equations
- Different MWinterpretations
- Two body problem of Hidrogen Atom
- Transformations of free fields
- Holographic quantum computing
- Groups in QM
- Non-Physicist looking for an answer
- Rotation Invariant of Sch. Equation and [Lx,H]=0] ??
- Basic Bell
- Understanding the Uncertainty Principle
- Quantum computations, irreversibility, unitarity
- Question about Deriving the de Broglie Wavelength
- Are the Quantum Numbers real ?
- A question about the uncertainty principle.
- A common sense objection to tunneling?
- Physicists Successfully Store and Retrieve Nothing
- Electron Magnetic Moment
- Foldy-Wouthusien velocity operator
- Hydrogen binding energies
- [SOLVED] The Meaning of Schrodingers Equation - In English
- Spin of the sress-energy tensor in d=2
- berry's phase of bloch oscillation
- condition of adiabaticity
- Heisenberg's equation of motion
- randomly emit of photon
- Finding CSCO? a complete set of commuting observables
- functional theta function
- Getting Involved In High School?
- Charge In Schroedinger's Equation
- Planck Constant Tends to Zero
- Uncertainty principle
- matrix connecting Sz diagonal basis to Sx diag basis
- Minimum possible energy for a particle in a box
- Quantum mechanics and ...the macroscopic universe .
- what's the difference between them
- Information RE The Double-Slit Experiment?
- Commutation relations in relativistic quantum theory
- Feynman propagator as distribution
- About incompatibility and interference terms
- Questions about Bell
- QED coherence in matter
- Waves are real waves or what?
- what happed to the other, if one entangled particle is "destroyed"
- energy unit
- What is ansatz?
- wave-particle duality
- [SOLVED] One-particle irreducibles in P&S
- when do we use notion of effective mass
- quantum randomness vs. "dice randomness"
- Do waves and/or particles exist at all???
- Quantum nonsense?
- field screening in the electron
- Electron filmed for first time ever
- Electrons In Some Compounds 'Gain Weight' At Cold Temperatures
- Question about the hermiticity of the momentum operator
- Electron at 0k
- Quicky on the Casimir Effect
- Could old CRTs be re-rigged for Quantum Experiments?
- Single electron interference pattern
- Coupling fermions to a scalar field: Interpretation problem
- Maximum size of a nucleus
- X-ray tube emission?
- Light, Current, & Magnetism Relationship?
- Photons particles or waves
- the idea behind renormalization group.
- Can virtual particles appear ANYWHERE?
- Commutation relation for L_3 and phi
- Photoelectric effect
- hydrogen molecular ion
- Particle/Wave Question
- What results when sound interacts with an Atom
- Orthogonality
- What is the inner product in state (ket/Hilbert) space.
- Torsion Field Question from a total newbie
- Quantum Foam Wormholes
- back up a step, before Bell's theorem
- Momentum as the generator of translation
- Propagator - Hankel function - infinite? - Weinberg
- The Doppler Effect- According to Quantum Mechanics
- wave and particle confusion
- phase in psi
- End of electrons leaving metal
- double potential well
- Liouville representation
- Outer product in Hilbert space
- Appropriate Concepts in the Formulation of Quantum Mechanics
- help with this semiclassical sum please.
- hermitian adjoint of the time derivative?
- Starting Place For Quantum Physics
- Physical meaning of the 2 eigenfunctions of Free Particle
- Fall into nucleus?
- Filmmaker needs your help...
- Commuting metric past Dirac spinors?
- Dumb question about waves
- LSZ formula help!
- dumb question about electrons?
- Visualisation of H2 molecule wavefuctions needed
- Quantum Computing
- Why there isn't "missing information" in QM
- Space/Time Entanglement?
- Help with this path integral.
- Quantum Hall Thruster? (QuantumHallEffect+HallThruster=?)
- apparent paradox
- Double Slit Experiment
- Hypothesis about Quantum Interference in Time
- Experimental distinction between states with one and two photons
- Scanning Tunnelling Microscope (STM)
- Many Worlds?
- Pauli Exclusion principle.
- How 'far' is far apart?
- problem with spin interprestation related to matrics
- Exercises and problems on QED and QFT ?
- Why don't electrons leave a negatively charged metal in air?
- Questions on the Copenhagen Interpretation
- The electromagnetic current vanishes identically in the Majorana case
- Have photons been isolated?
- Fermi-Dirac statistics valid for electron gas in metals?
- states
- Bohmian interpretation and schroedingers cat
- variational principles for Probabilities.
- perturbation theory.
- Lens as quantum eraser?
- Quantum Suicide
- Quantum of gravity
- Silly conceptual question
- Time-dependant Schrödinger Equation Help.
- summary of the key formula of QFT
- Does anything actually move?
- Fermi energy and diodes
- "quantum sensor" and units issue
- Metric tensor, infitesimal transformation
- Atomic Orbitals ?
- Example of observing without absorbing needed
- Degree of freedom ?
- Spin 1/2 vs Spin 2
- Quantum Interpretations history
- Exact solutions for a QFT
- Photon spin ?
- Magnetic Quantum no ?
- bb radiation
- Quantum of charge
- SU(3) symmetry and simple zeros of w. f.
- Classical analouge of electron spin ?
- Electron orbits
- Quantum theory of friction
- Restrictions on negative energy
- Representations of SU(2)
- Transition probabilities in H
- Quantum vacuum fluctuations
- electron in a well: energies are quantized or not?
- Max Born and probability waves
- Quantization of energy levels
- cardinality of bloch waves
- Space quantization of electron orbits ?
- Perturbation Theory
- Doublets Scalar Potential Question
- A question about nonlocality
- Generalized Quantum Mechanics
- Laser
- Quantum bouncing ball
- Afshar experiment questions - PROPONENTS only:P
- String Theory
- Planck's Radiation Formula
- Is time also quantized?
- Zee,p.236
- The nature of photons
- de Broglie thought experiment
- Size...of everything
- [SOLVED] Quantum Numbers
- quantum home experiments
- An important question please.
- coherent states
- posulates of quantum mechanics
- Microcausality in algebraic QFT
- Connection between Dyson's equation and Heisenberg equation of motion
- Four or Five fundamental forces
- The Observer Effect
- Relative Velocity & De Broglie's Theory
- Why Couldn't Einstein Accept Non-Locality?
- Black holes and particles
- success of SE simulations
- Breaking quantum entanglement ...
- The double slit experiment
- Using the energy of quantum oscillations
- Determining uncertanity from the wave equation
- Degree of divergence and dimensions of G
- Imagine
- Cutoff potential???
- Frequency of light???
- Quantization and fluid mechanics??
- 1-D Box. Paradox?
- A few quantum mechanics problems
- magnetic moment is an intrinsic property of elementary particles?
- Quantum entanglement in time
- Observables
- what is the difference between van der waals interaction and casimir interaction?
- Why/how electron spin conserved?
- Quantum rolling ball
- Will quantum computers ever be possible?
- Vaccum fluctuations???
- Fermion oscillator
- Quanta of massive vector fields
- Proposed Modification to Afshar's Experiment
- Brownian motion and the quantum scale.
- [SOLVED] Spin?
- OWI in MWI ?
- Maxwell distribution of kinetic energies
- Electron orbital angular momentum
- Compatability with 10^-33 cm
- Interpretations of QM- help on points!
- Access to classical papers
- De Broglie Waves and Complex Numbers
- In the footsteps of Young
- Spin Hamiltonian
- photons don't decay, right?
- Homonuclear diatomic molecule (N_2 and O_2)- question about magnetic quantum number
- Wave vs. Particle-Like Behavior
- Energies and frequencies
- Is It Possible?
- Pilot Waves, any thoughts?
- Uncertainty
- Photoelectric effect [doubt]
- Confusion about eigenstates and wavefunctions.
- quantum entanglement question
- Quantum mechanics
- Models of Photon
- Photon / Schrödinger equation
- Electromagnetic radiation
- why does electron have wave property
- Why replace Hamiltonian with operator?
- Schrödinger equation: eigen value or differential equation
- Eigenfunction, Eigenvalue, Wave Function and collapse
- What really is a photon?
- Does MWI Resolve Locality Problems with Entanglement?
- Quantum Mechanics 1D Harmonic Oscillator Simulator
- Mwi
- [Quick] States of interacting and non-interacting Hamiltonian
- Crazy photons
- Feynmann diagrams interpretation and diagramm symmetry order
- renormalization, infinitesimal charges?
- inelastic collision and ideal gas law
- Measurement
- relative-state or many worlds theroy
- Interaction term in path integral
- Quantum Physics
- un- uncertainity
- Statistical mechanics
- quantum fields are the basic constituents?
- Semantics of "Wave"
- path integral in momentum space
- spurion & symmetry
- Questions on Line Spectra, Orbitals and Radiation
- Entanglement Effects in Relativistic Reference Frames
- generating shock wave using aerodynamic window
- probability current versus electric current
- photons at same place at the same time
- two loop corrections...
- quantum virial and confinement
- delta potential barrier
- Momentum - Energy Question
- Good Introductory QM text?
- DiVincenzo Criteria
- The Photoelectric Effect
- symmetries and conserved quantities
- interference
- Wanna get messy with Quantum Cakes?
- Maths of path integrals?
- The exact meaning of the 4 components of the Dirac Spinor
- About quantum information, Bell states or GHZ state?
- The Fine Structure Constant
- Non Commutative Quantum Field Theory
- Distinguishability
- What are generalized probability functions?
- Symmetric Potentials
- observers and observation
- Could someone explain Luders Rule?
- Reference to a peer reviewed paper
- Intro to quantum physics
- Recursion relation for C-G coefficients
- About the wavefunction
- energy levels in quantum well structures
- Decay length of Half Square Well
- pauli exclusion principle
- Chern Simons Spin density as hidden variable.
- Difference between Fermions and Bosons in Feynman diagrams
- Bohr model & Atom Stability
- Spectroscopy question
- raising and lowering operators for spin
- Quantum number and wave vector
- momentum eigenstate
- Visualizing quantum spin
- Bayes theorem in quantum mecanics
- negative force!!!!
- "An irreducible representation of..."
- What's going on between Alice and Bob?
- Question - fine structure
- quantum numbers
- Good introductions to quantum field theory and vacuum
- Numerical calculation of tunneling probability
- Quantum Mechanics and Relativity.
- Extra dimensional equation for energy. Curled dimensions, scales, QM
- Unitary evolution and analytical continuation
- what does this state collapse into after the measurement?
- Logical Rational for spooky-action @ at distance
- Spherical symmetric potential
- De Broglie wavelength of a particle
- Know H or CM?
- Electronic structure of the atoms
- Electron size
- Non-local Casimir force?
- Superposition or Many-worlds interpretation?
- Proper tunneling time
- Physical meaning for wavefunction
- Advice about assignment on QM
- Compton Scattering from bound electrons
- Massive boson propagator - problem with step in derivation
- Reasonable Relativistic Speeds
- Afshar's experiment
- Two-slit & n-slits?
- neutrinos going through neuclei?
- Angular Momentum Expectation Values help for noobie
- First order term of S in QED
- Quantum Network and Quantum Imaging
- Acceptance of Many Minds
- Tadpole graph & normal ordering
- atoms entangled
- how instantaneous?
- most useful QM formalism?
- How do electrons move?
- I need your help teaching physics
- Teleportation & EPR
- The dimension of the fine structure constant
- Parallel Quantum Computers
- fermion contraction
- Photons and interference
- Density matrix off diagonal terms - what do they mean?
- Bohmian particle in box
- Electromagnetism
- program for feynman diagram
- Sidney Coleman (1937-2007)
- matrix of angular momentum operator
- Bizarre theory-Could there be any truth in this?
- Compton Effect
- Why does Lorentz Force law work?
- Quantum Foam
- How to observe the future?
- From WHERE???
- Deadly observables
- One Photon from coil and battery
- Wax on Wax off
- How many believes in Quantum Immortality ?
- Result of measuring H_x
- Consequences of Dirac Theory of the Positron
- What book best accompany Bohm's
- time-dep perturbation theory
- Testing Hermicity
- permutation operator
- MWI bugging me
- Argument with physics teacher
- Time dependent eigenvalues?
- System of hydrogen atoms in an electric field
- How to work in the momentum representation?
- Integrating over all possible fields
- Has Zeilinger disproven DeBroglie-Bohm?
- "Artificial atoms" used to improve compact discs?
- [YPz,YPx]=0
- Why integral particle number?
- four fermion interaction??
- Quantum physics with Green's functions
- Non-Commutative Angular Momentum, and Muonium
- spin half
- R-constants
- Nonlocality of a Single Particle: A Scheme Without Objections
- Intiutive approach to Green's function for SE
- What do photons look like?
- Probability Amplitude phases
- slit experiments
- Entanglement for real?
- I understand Quantum Theory
- What is Quantum Physics?
- Hilbert/Fock space spanned by non-interacting states
- spectral line width calculations
- Always in an eigenstate?
- Consciousness question
- Excitation vs. Absorption
- Flux vs. fluence
- A crank's idea about Uncertainty Principle
- two particles in superposition
- Need a quick tutorial on the following topics
- I feel stupid for askin this but...
- Spin degeneracy
- The Dirac Equation and the Neutrinos
- Virtual Photons as Force Carriers
- Double Slit experiment
- 3 photon entanglement
- Zero-Point Energy?
- Is the physical whole a sum of quantum measurements?
- Why is angular momentum quantized?
- Light through polarizing filters
- spin chains
- path integrals
- Delta Function Well
- Operators
- Free Particle Understanding
- DFT/hartree Fock calculations
- A variation of the double-slit experiment--myth or did somone really do it?
- Communication using quantum entanglement
- Plethra of questions.
- COM vs Lab Total energy discrepency
- perturbation effect on harmonic osclillator
- completeness
- QM angular momentum question
- completeness relation
- Fourier Transform of Hermitian Operators
- why
- Zeta function regularization
- bound states
- Question about Entanglement
- typo in "Kapusta" or "Ashok Das"? Formula for thermal propagator
- Eigenvalues and [p,q]=i
- hermitian matrices
- Absorption of photons by electrons
- light polarization
- Electromagnetic casimir effect
- Euclidean QFT and thermodynamic analogy
- Getting to grips with Feynman
- Why does spin 0 have to be a true scalar?
- 'Spookytech'?
- Operators - Parity
- why is the electric dipole moment of an atom zero, but the magnetic moment nonzero?
- Pψ=aψ
- Photon capture
- clarification on wavefunction collapse
- Question about the Photoelectric Effect
- How two quantum systems interact ?
- What is interactive force?
- Entanglement and interference in a nutshell
- Light diffraction
- Can QT estimate the ionization energy of neutral Helium, He I?
- Orthonormal basis and operators
- Angular Momentum Ladder Operators
- Wavefunction collapse: is that really an axiom
- Adding Three Spin 1/2s
- Local in space
- Higgs field questions
- Photon, black hole, Wikipedia quote
- Questions about MWI clones
- Particle in a shrinking box
- Fermi and Bose statistics...
- detecting a particle in QFT
- Bosonic atoms?
- deriving baker campbell hausdorff relation
- energy from single point rather than expectation integral in Full CI calculation??
- Shor's algorithm
- significance of the hamiltonian commuting
- Usefulness of Heisenberg picture?
- pure/mixed state
- experimentally proving MWI
- Anyone know of a good QF doco?
- Spin Interference
- On the helicity of the electrons
- entanglement and observations
- Wave functions of molecules?
- Aether Over Einstein?
- I won't debate on the "wavefunction collapse" ...
- Quantum Video
- Problem on Bell States..
- operator in non-orthogonal basis
- sequential stern-gerlach
- Complex simple Lie algebras classification
- Symmetry and conserved probability current for wave functions
- Book on QM for beginner
- operator question
- Do MWI and String theory conflict? (sorry--I'm a layman)
- Yang-mills
- Spin 1/2 Particles
- How are the positions of particles described in QFT?
- Quantum immortality and engineering your universe?
- Many-worlds interpretation: Worlds joining instead of splitting?
- A photon as a phonon in ether?
- How The Mass Of an Electron Was Worked Out
- Book on quantum physics
- time in quantum physics
- Forces
- Are all Atoms the same size?
- cylindrical waves
- about the radiation of blackbody
- Can Atoms make a sound?
- Very basic help on notations
- shor's algorithm
- time independent perturbation theory
- Transmission of Light...How???
- Commutator with r, p_r and angular momentum..
- Continuity of the wave function
- Quantum uncertainty and digital data
- Noncommuting operators and uncertainty relations
- negative energy in griffiths
- instantaneous potentials
- Pure Electron Diffraction Experiments
- interference and photons
- Very basic questions about QFT
- Binding Energy in U-235 and daughter atoms
- entanglement and which-path
- understanding Klein-Gordon
- field quantization
- The use of Eigenvalues/function in QM
- Relativistic quantum mechanics and causality
- Single-Particle Interference for BIG objects-what does it mean for a lay person?
- unique to within a constant factor???
- Gordon decomposition an "right" current
- coherence of laser
- time independent perturbation theory
- Entanglement
- decoherence time
- CNOT gate
- Understanding the Probability Current J
- shall operator sign change
- Application of true randomness
- Noob Question
- spin matrix
- A Conceptual Question
- diagonalization
- propagation speeds in literature
- More about wave packets
- spinor
- gauge transformations
- What is attraction?
- photon spin
- Velocity of Photon - Feynman
- Kinetic orbital momentum
- What is the absence of energy?
- How is electron formed? Why does it travel?
- collapses against conservation laws
- cat in a box paradox
- Absorption Spectra
- Watching a wavefunction gradually collapse
- Watching a wavefunction gradually collapse
- qft topic question
- Quantum Mechanics and Determinism
- Interference of two particles - how does it work?
- renormalization
- Spin - overlapping photons with opposite spin
- Chirality in Dirac Equation
- DDCS: Explanation
- Interaction representation
- hamiltonian and energy momentum tensor
- Symmetry Groups
- Quantum chaos
- non-abelian anomalies
- Quantum leap FTL ?
- relativistic quantum mechanics
- Robinett book
- Decay Modes of the Higgs
- about wave function collapse
- Definitive website about QM
- Schrödinger equation: macro level
- A string nailed at two points
- Help!! Quantum Mechanics
- Associated currents with discrete symmetries?
- Why Hilbert space?
- bohmian mechanics
- Two state system
- lagrangian and hamiltonian formalism
- Does Photons bouce off eachother
- molecular switch and mobius molecules.
- How are the formulas in QM derived?
- General Hamiltonian from SE
- Teleportion of particles in Vienna in 2000
- at the same time...
- universal unit of time
- Another question on Schrodinger Equation
- Physical Meaning of QM Expectation Values and other ?s
- about hamilton operators
- Wave functions
- Linearity of A Hermitian Operator
- Proof Dealing With No-cloning Theorem
- answers of questions in mathematics of classical and quantum physics
- Energy from Casimir effect
- Questions on observation
- energy required to create electron positon pair
- maxwell's equations
- Is BM “Bohmian Local” actually Local
- group theory question
- Measurement question
- Stern Gerlach angle?
- acceleration quantization ??
- feynman's sum-over-histories
- spinors
- Magnetic & electric fields in QM?
- Temporal overlap of light beams
- Can't walk through a wall.
- Quantum Questions from a Sci Fi writer
- Time in QM
- Angluar momentum of 0?
- Pauli's exclusion principle?
- Confinement in QED
- parity
- A non-linear SE can have Eigenvalues??
- BEC Propulsion?
- scalar field and spin 1/2 field
- spin angular momentum operators
- Wave particle duality again(photons)
- Wave function
- Gauge Transformations and (Generalized) Bogoliubov Transformations.
- path integral in momentum representation
- What is the difference between entangled and "normal" photons?
- Finding Einstein’s Hidden Variable
- what do we mena by energy barrer!!
- Free-Air Transmission and Quantum Effects?
- four momentum
- renormalization group and cut-off
- Helicity vs. Chirality?
- Q concerning Schrödinger’s equation
- Unlimited energy???
- Rewriting a wave function superposition
- Intensity of Hydrogen spectral line
- gauge corvariant derivative
- symmetric potential
- dirac bilinears
- Negative energies.
- thoughts about ∣Φ>=∣1>*C1+∣2>*C2
- Intensity of radiation emitted by a box full of Hydrogene at some T
- albenian and nonalbenian
- feynman diagrams
- (How) is a single photon polarized?
- renormalization and divergent integrals.
- Spin-statistics theorem
- Question about quantum mechanics
- wave functional
- fourier analysis in qft
- Does anyone know a good ref for this?
- Origin of photons
- Continuity of correspondence?
- Measurements problem - QED
- travelling on waves
- Allowed energies for an SHO
- Quantum affects what scale?
- meaning of quantized
- Magnetic Monopole
- Correspondence Principle
- schrodinger's equation
- Understanding interference and decoherence
- Casimir effect - Does it fit? Or NOT?
- Confused on Electron Double slit experment
- what does canonical mean?
- Do photons possess energy?
- Probability or Impossibility in QM?
- Question on Double Slit experiment
- Slow variables in Nonlinear Schrodinger Equation
- a paradox about Heisneberg Uncertainty ??
- Fourier transform formulation of the dirac delta
- Virtual particles
- usual QM with 'loops'
- SO(4) Group
- Negative work function??
- Compton scattering: electron absorbs then emits a photon?
- I've found a way to "see" electrons! (?)
- Klein's Paradox
- Novice question about heat, ZPE and HUP
- Velocity of electron
- On Heisenberg Principle - ParticleWave Hybrid
- quantum tic tac toe
- photon's charge
- Photoelectric effect
- Double slit - do it yourself?
- photodetection theory
- quantum optical application of Pascal Principle
- de Broglie wavelength
- Modified Mach-Zehnder Interferometer
- The Born Von Karman Boundary Conditions
- Weak measurements? Modified Double slit
- Is backward-in-time causality a requirement in Cramer's transactional interpretation?
- How make a confront between energy levels?
- Haag's Theorem, Perturbation, Existence and QFT.
- Quantum Random Bit Generator
- Fourier Integral involving a position operator
- Spun Out
- Renormalization schemes
- The temperature is also quantized?
- Path integral
- Propagator
- The Observer and Locality in the Quantum World
- Cramer's Backward Causality Experiment
- Bell's Inequality with BEC Superatoms
- Does "frequency" make sense in terms of one particle?
- Why doesn't QM make particles zig-zag as they travel?
- Conditions for entanglement to exist
- Filming of an electron
- Quantum Teleportation
- How big is a photon
- energy of first orbital
- E=nhf
- Cyclic Energy Transformations QM
- Propagator equation
- Uncertainty
- Electromagnetic field vs. photon(s)
- entangled photons
- periodic potential
- photon absorption
- what is propagator
- paraquantization
- Hamiltonian
- operators
- Definition of a measurement
- periodic potential: Bloch's theorem
- Does Moon exist if you don't look at it?
- Can i exploit johnson noise to violate the second law?
- QM from a variational principle.
- question on the nature of spacetime
- Issue with Copenhagen Interp
- can a composite system AB in a state of |0> ???
- Question about Quantum theory
- Photon pressure
- Higgs particle
- pi-zero particle
- Particle theory of light
- Relativistic Correction
- Electron spin, why do the pairs have to be opposite?
- Quantum Interpritation?
- A poll
- Time ordered product vs. commutator in path integral
- covariant quantum field theories
- Path integrals and propagators
- How far does the Pauli Exclusion Principle apply?
- What is lacking in QM that String theory wishes to fill up?
- Does Pauli's principle prevent an electron from having infinte energy?
- Quantum field theory vs particle physics
- How observation leads to wavefunction collapse?
- Copenhagen interpretation
- A few quantum mechanics questions
- Wave-particle duality
- operators in Bra-Ket notaion
- Wheeler's delayed choice gedanken experiment
- Photon-Ghost coupling?
- Rough Description of State Space
- Balmer & Rydberg equations
- Euler-Lagrange equations in QFT??
- Measuring velocity and position of a particle
- quantum entanglement
- attractive exchange forces?
- Canonical variables
- Basis ambiguity?
- I don't understand the paradox of entanglement...
- The Infinite Well
- energy in QM
- Locality/nonlocality for bound states - a question
- Euler-Lagrange equation
- operators in QM
- HUP and Particle Accelerators
- about symmetry operation and a corresponding unitary transformation
- SR and QM related by Everett's MWI?
- D-Wave and Quantum computing
- Stern Gerlach
- Quarks?
- Where does the energy possessed by a free electron come from
- complete basis for quantum oscillator Hilbert space
- Transactional Interpretation
- Wave/Particle Double Slit Experiment Questions
- "Spooky Action At A Distance"
- Undergrad Lab Experiment
- Dirac Sea = Unceasing Day
- Have all the electrons in this universe come from a single electron?
- How does spin justify Pauli's principle?
- PhotoLuminesence in Quantum Dots
- Holstein Model Basis States
- Malus law in quantum mechanics
- What is Quantum Physics in simple?
- How does entanglement affect a photon's ability to interfere?
- Can the Pauli principle be visualized?
- feynmann diagrams, bhabha scattering
- Lerning the Standard Model and some question about QM
- Is the study of black holes using entanglement practical?
- Do equivalent quantum states imply entanglement?
- "Inside the Wavefunction"
- Generation of polarization entangled photons
- Exchange integral?
- Explanation for the double slit?
- Demystifying spin?
- wave packets that feel harmonic potential
- Hamiltonian of Minimum Uncertainty State
- negative kinetic energy?
- Unclear about the Heisenberg uncertainty principle
- Spin functions
- perturbation?
- Time ordering operator
- Klein Gordon Hamiltonian
- Clebsch-Gordon
- What charges a proton?
- How many gluons in a proton?
- Dirac delta function
- why the reflection and transmission?
- Nodes of a wavefunction
- Quantum Computing problem [Quantum Teleportation] (Nelson and Chuang)
- distinguishing between superposition and hidden information
- violation of physical laws?
- 2-D Wigner-Eckert Theorem
- Quantum vaccum one dimensional?
- Commutators and the Parametric Nonrelativistic Particle?
- 2 or more particles in a box?
- Expectation Value of Momentum in H-Atom
- Selection rules and related stuffs
- Energy eigenfunctions?
- Quantum Dots
- spectral line width problemo!
- Can anyone show me this?
- A few questions about QM and QFT.
- tunneling past the speed of light
- Method of analysing the SE?
- Harmonic oscillator?
- Help on classical-quantum boundary poll?
- time independent schrodinger equation: delta potential
- Photon is different from an eletron
- Wavefunction conditions
- QM of particles with no common past light cone
- Is quantum field theory a genuine quantum theory?
- Photon tunneling...
- Double Slit Experiment Movie
- A Quantum problem..
- A general math theory on the quantum harmonic oscillator?
- Isn’t Bell’s probability density for hidden variables too restrictive?
- Simple question regarding the Bloch Sphere
- Common quantum question
- Minimum uncertainty state?
- Is there a minimum possible wavelength?
- neutron decay?
- Even another 2-slit experiment setup
- Why is glass "QM transparent"?
- QM and maths?
- The double slit experiment
- Question on experiment
- correspondence principle
- Black Body Radiator Question
- Magneto-Optical Trap
- "the mass of photon"
- EPR and FTL
- Intensity of light constant..why rate of emission of electrons changes??
- Integral
- Cateogory theory in physics
- Is the Entropy of the Universe Zero?:(Entropy as Entanglement)
- Why the Photon?
- Harmonic Oscillator, Ladder Operators, and Dirac notation
- Fermi Golden Rule
- The prbability density
- pauli principle confusion
- What exactly is spin?
- Another misleading observer example, or not?
- Solving S.E. for rigid rotor (asymmetric top)
- New interference experiment
- godel incompletness related to physics?
- F=ma
- what is velocity ,momentum.
- quantum angle selectivity of polirizers filter
- Eigenvalues for particle in finite square well
- anticommutation example
- uncertainty of when a photon is absorbed
- Another doubt regarding wavefunction.
- Transition Dipole Moment and Electron Transfer
- what does * mean and how is it used
- About WKB approximation
- Can someone explain the Schrödinger equation?
- How can this possible tricky situation be explained?
- Why Bohm?
- \Phi^3 Quantum Field Theory
- A few questions about particles.
- How is light experimentally proven to be a particle?
- Measuring instant changes in particles
- What are entangled particles?
- Imaginary Action
- Fundimental frequency of subatomic particles.
- Dirac's field
- Wave function
- Original QM sources
- What will happen in the following scenario?
- Waves...........
- Relative Time and Mass Equation...
- Minimum energy for a spin flip?