Join in expert discussion on quantum physics. Quantum physics is the mathematical description of the motion and interaction of subatomic particles. Quantum Mechanics and Field Theory.
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Graduate Why do electrons in a current not repel each other?
- noblegas
- · Replies 4 ·
Graduate Srednicki 9.17, 9.18: Sum of Diagrams with Single Source Removed
- kexue
- · Replies 3 ·
Graduate What is the QFT picture of forces?
- Gerenuk
- · Replies 7 ·
Graduate What are wave functions?
- ashutosha
- · Replies 1 ·
Graduate Why graviton particle theory concept is not accepted?
- sairajagopal
- · Replies 3 ·
Undergrad How does an Electron 'jump' from one orbit to the other?
- xcorat
- · Replies 14 ·
Graduate How Does Pauli-Villars Regularization Handle Three Types of Divergences?
- zetafunction
- · Replies 1 ·
Graduate Branch-cut singularity and the multiparticle contribution to the full propagator
- gremezd
- · Replies 5 ·
Graduate Do we really need loop diagrams?
- RedX
- · Replies 3 ·
Graduate Is the concept of electron shells conceptually realted to quantum tunnelling?
- Galteeth
- · Replies 2 ·
Graduate Basic question on QFT and the standard model
- jnorman
- · Replies 1 ·
Graduate Constructing Wave Function for N-Electron System
- saravanan13
- · Replies 4 ·
Graduate The wave nature of the wave function.
- espen180
- · Replies 3 ·
Graduate The Frequency of one Photon?
- voxmagnetar
- · Replies 4 ·
Graduate Trace of a product of four Pauli matrices
- div curl F= 0
- · Replies 8 ·
Graduate Nonlinear vacuum permittivity?
- Pythagorean
- · Replies 6 ·
Graduate Multitude of Quantum Mechanics questions
- Master J
- · Replies 1 ·
Graduate Is gravity really just an electromagnetic field on a larger scale?
- Simon76
- · Replies 19 ·
Graduate Can a collapsed quantum state be reversed before measurement is complete?
- sokrates
- · Replies 11 ·
Graduate Entangled particles and measurement
- JK423
- · Replies 2 ·
Graduate The particle INSIDE the barrier
- iLIKEstuff
- · Replies 2 ·
Graduate Loschmidt's paradox-II: Quantum Decoherence
- Dmitry67
- · Replies 2 ·
Graduate Amplitude damping with harmonic oscillators
- haxel
- · Replies 1 ·
Graduate Attosecond Spectroscopy, QM, and Atomic Geometry
- 1Truthseeker
- · Replies 2 ·
Graduate Wave particle duality as applied to photon
- ArielGenesis
- · Replies 4 ·
Graduate Variational method in a finite square well
- jcsimon89
- · Replies 1 ·
Graduate Can Operators A and B Always Be Applied to a General State in Tensor Space?
- Kreizhn
- · Replies 1 ·
Graduate How can I get the wave function
- eoghan
- · Replies 3 ·
Graduate Determinism of the wave function
- nomadreid
- · Replies 2 ·
Graduate Defense of pilot wave theory against Motl
- Ilja
- · Replies 4 ·
Graduate Recovering the generator of rotation from canonical commutation relations
- NewGuy
- · Replies 1 ·
Graduate Uncertainty principle and standard deviation.
- kof9595995
- · Replies 21 ·
Graduate Entanglement: Understanding the 2 Electron System States
- xMonty
- · Replies 3 ·
Graduate Since protons are not spherical, are their charge fields non-spherical?
- jaketodd
- · Replies 8 ·
Undergrad What is Field? Understanding its Nature and Properties
- SANGHERA.JAS
- · Replies 7 ·
Undergrad How many electrons in all of 6f oribtals?
- ppl2pass
- · Replies 2 ·
Graduate Solve 1-D Potential Barrier: Electron, Width 8 Angstroms, Depth 12eV
- rajasekhar_09
- · Replies 1 ·
Graduate Why doesn't measuring Alice's spin affect Bob's in the EPR paradox?
- ballzac
- · Replies 3 ·
Graduate Eigenstates of the Hamiltonian
- Master J
- · Replies 3 ·
High School Why does a red ball absorb white light and reflect only red photons?
- xMonty
- · Replies 18 ·
Graduate Does timing photon emission resolve the uncertainty principle?
- texta
- · Replies 22 ·
Graduate Quantum Observer: Can We Perceive Atomic Reality?
- Gear300
- · Replies 11 ·
Undergrad What Causes Saturated Absorption in Materials?
- KFC
- · Replies 1 ·
Graduate QFT Recipe: Outlining the Formal Structure
- newbee
- · Replies 7 ·
Graduate How are electrons considered waves?
- mahela007
- · Replies 86 ·
Graduate Entangled protons in a crystal lattice
- Jon_Trevathan
- · Replies 7 ·
Graduate Probability Current Density or Flux
- manofphysics
- · Replies 3 ·
Graduate Input and Output with a Quantum Computer etc
- jaketodd
- · Replies 1 ·
Graduate Probability of measuring distance between two particles within ±d
- facenian
- · Replies 3 ·
Graduate Entanglement and String Theory
- Qubix
- · Replies 7 ·
Undergrad Gaussian Wavepacket Tunnel Through double barrier
- mehdikhann
- · Replies 6 ·
Graduate Representation of second quantization
- Petar Mali
- · Replies 3 ·
Graduate What does dominate mean when quantum effects dominate at Planck length?
- Freeman Dyson
- · Replies 7 ·
Graduate State/wave function after measurement?
- z00maffect
- · Replies 2 ·
Graduate Susceptibility: Imaginary Part = 0 - What Does it Mean?
- KFC
- · Replies 1 ·
Graduate QFT Lorentz transformation question
- emob2p
- · Replies 15 ·
Graduate Missing factor of √2 in raising operator derivation
- dFrankCalc
- · Replies 2 ·
Graduate Properties and Elements of SO(4) Group in 4 Dimensions
- jobinjosen
- · Replies 3 ·
Undergrad Introductory quantum cryptography resources for undergraduates
- Littlemissshy
- · Replies 1 ·
Graduate Discrete and continuous confusion
- qbslug
- · Replies 3 ·
Graduate Deriving Schrodinger Eq. from Complex Plane Wave: Erwin's Way
- snoopies622
- · Replies 5 ·
Graduate Violation of Bell's inequality
- Descartz2000
- · Replies 8 ·
Graduate What are the fundamental information-processes in physics?
- ConradDJ
- · Replies 35 ·
Graduate Can the Bohr Model really prevent electron energy loss?
- planck42
- · Replies 4 ·
Graduate Path Intergral quantization for Relativistic Point like particle?
- aspidistra
- · Replies 15 ·
Graduate Is the quantum Zeno effect really accurate?
- imiyakawa
- · Replies 4 ·
Graduate Wave-particle duality of phonons?
- Demystifier
- · Replies 12 ·
Graduate From quantum field theory to quantum mechanics
- luxxio
- · Replies 4 ·
Graduate What is the infrared divergence problem in quantum field theory?
- Jedi_Sawyer
- · Replies 9 ·
Graduate How do Lie groups and algebras generate unitary operators in quantum mechanics?
- quasar_4
- · Replies 4 ·
Graduate Speed of light in transparant materials
- FayeKane
- · Replies 8 ·
Graduate Does EPR contradict SR in non-relativistic QM?
- facenian
- · Replies 2 ·
Graduate Violating uncertainity principle
- cosmicray
- · Replies 4 ·
Undergrad How does electron change properties of matter?
- karolism
- · Replies 4 ·
Graduate Double slit experiment with spin
- abomination5
- · Replies 1 ·
Graduate Asymptotic behaviour after perturbation
- Gerenuk
- · Replies 2 ·
Graduate Double slit experiment in a Bubble Chamber
- JK423
- · Replies 1 ·
Undergrad Solving for E(0) in Equation: Vacuum Permittivity
- FatCat0
- · Replies 5 ·
Undergrad How to switch between momentum/real space
- Sasuke
- · Replies 1 ·
Graduate Is Time Discrete or Continuous?
- strongstring
- · Replies 1 ·
Graduate Weinberg Vol 1: Understanding Index Arrangement in (2.4.8) LT Transformations
- shehry1
- · Replies 3 ·
Graduate Constructing Optimal Unitary Operators for Distinguishing Quantum States
- Kreizhn
- · Replies 6 ·
Graduate Delta-function potentials, scattering states
- AntiStrange
- · Replies 1 ·
Graduate How many measurements are needed to verify the uncertainty principle?
- kof9595995
- · Replies 15 ·
Graduate Discussing Exciting Topics in Quantum Optics
- Niles
- · Replies 2 ·
Undergrad What is the correct order of operations for differentiating r^2 with 2/r*d/dr?
- timmo567
- · Replies 1 ·
Graduate Charge of down, up , electron; (-1/3, 2/3, -1)*3 more natural?
- Spinnor
- · Replies 5 ·
Undergrad Why do electrons in lower atomic orbits have smaller wavelengths?
- daisey
- · Replies 3 ·
Graduate Diagonalization of large non-sparse matrices
- jsschreck
- · Replies 9 ·
Graduate How can energy be quantized with E=hv
- mahela007
- · Replies 28 ·
Graduate Stationary Perturbation Theory
- tommy01
- · Replies 1 ·
Graduate Calculation of probabilities in QM
- facenian
- · Replies 7 ·
Graduate Tunneling time for electron in double square well potential
- ywkim880801
- · Replies 1 ·
Graduate Angular momentum commutator derivation
- asja
- · Replies 2 ·
Graduate Quantum Electronics: Basics, Applications, Semiconductor Lasers
- Benjamin113
- · Replies 1 ·
Graduate Is the entanglement of photons necessary for interference?
- alexepascual
- · Replies 40 ·
Graduate A local deterministic theory that violates Bell's inequaities
- Count Iblis
- · Replies 116 ·
Graduate Intuitive Understanding for Commutation
- sokrates
- · Replies 9 ·
Graduate Regarding the observer effect.
- vegetto34
- · Replies 6 ·
Graduate SUSY computational questions:dots
- haushofer
- · Replies 8 ·