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.
Sub-forums
Threads
Graduate Creating Models for Ed Witten's M-Theory
- catherineM
- · Replies 2 ·
Undergrad Do quantum fluctuations violate conservation of matter?
- Micsunderland
- · Replies 1 ·
Undergrad Light Transfer (Light Transmittance)
- hannalee
- · Replies 3 ·
Graduate Can I Walk Through a Wall with Quantum Mechanics?
- Waveparticle
- · Replies 6 ·
Graduate Hermitian conjugate of spinor commutator with Lorentz generators in Srednicki
- LAHLH
- · Replies 7 ·
Graduate Ionizing solutions to the hydrogen atom
- mordechai9
- · Replies 5 ·
Graduate Dispersion relation and Photonic Energy and Momentum Equations in QM
- DaTario
- · Replies 2 ·
Graduate Attraction between two charges in QED
- exponent137
- · Replies 4 ·
Graduate Is there a quantum nuclear theory?
- RJMooreII
- · Replies 24 ·
Graduate If two operators commute (eigenvector question)
- AxiomOfChoice
- · Replies 2 ·
Graduate Hawking radiation redshift (?)
- Edi
- · Replies 1 ·
Graduate Spin-spin relaxation time in water
- KBriggs
- · Replies 2 ·
Graduate Why need *complex* probability amplitude?
- Gerenuk
- · Replies 15 ·
Graduate Better than Bell: The GHZM Effect
- Daverz
- · Replies 1 ·
Graduate Peskin-Schroeder - Eqn 2.45 derivation
- giant_bog
- · Replies 3 ·
Graduate Quantum mechanics and randomness
- SeventhSigma
- · Replies 67 ·
Graduate Einstein against Quantum theory
- Waveparticle
- · Replies 2 ·
Graduate Propagator using cauchy integral
- Gary Weiss
- · Replies 3 ·
Graduate Electromagnetic mass of the electron
- relativityfan
- · Replies 3 ·
Graduate Diagonalize a non-hermitian matrix
- njuclean
- · Replies 4 ·
Graduate Dalembertian Operator: Symbolized by Empty Box?
- romsofia
- · Replies 2 ·
Graduate Probability laws of quantum mechanics
- Waveparticle
- · Replies 1 ·
Undergrad Quantum physics and technology
- snackster17
- · Replies 2 ·
Graduate Elitzur-Vaidman bomb tester with human decision-making
- LodeRunner
- · Replies 4 ·
Graduate Delayed-choice double slit experiment
- Jamma
- · Replies 38 ·
Graduate Need some convincements on microcausality
- kof9595995
- · Replies 1 ·
Graduate Is there an upper limit to e/m frequency?
- Greylorn
- · Replies 23 ·
Graduate What is the Role of Wavefunction in DFT for Molecular Systems?
- Karrar
- · Replies 2 ·
Graduate How big is a photon and what does it look and behave like?
- Boffin
- · Replies 170 ·
Graduate Does the Wave Function Predict the Most Likely Position of an Electron?
- Billyneutron
- · Replies 5 ·
Graduate Electron/photon interference pattern questioned
- etamorphmagus
- · Replies 36 ·
Graduate Reference suggestions for a struggling chemist.
- dmr1577
- · Replies 1 ·
Graduate Relationship between mass and interactions
- relativityfan
- · Replies 1 ·
Graduate Jordan wigner transform and periodic boundary condition
- wdlang
- · Replies 4 ·
Graduate What Precisely Does Preferred Foliation Mean?
- inflector
- · Replies 2 ·
Graduate What does the Uncertainty Principle say about the location of photons?
- JJRittenhouse
- · Replies 30 ·
Undergrad Velocity of light while coming out a denser medium
- Parbat
- · Replies 8 ·
Graduate How to show time ordering is frame independent
- baixiaojian
- · Replies 3 ·
High School Why do atoms arrange into different materials?
- ThinkingAloud
- · Replies 11 ·
Undergrad What Is the Difference Between Color Neutral and Colorless in Quantum Physics?
- humsafar
- · Replies 4 ·
Graduate What Is the Difference Between Hamiltonian and Hermitian Operators?
- piareround
- · Replies 5 ·
Graduate Having trouble with time (in)dependant solutions
- ChaosCon343
- · Replies 1 ·
Graduate Time derivative in the Heisenberg picture?
- pellman
- · Replies 2 ·
Graduate Does a photon have a width and height ?
- Edi
- · Replies 5 ·
Graduate How does one arrive at this equality?
- Tac-Tics
- · Replies 1 ·
Graduate Spinors vs tensors in rotation spaces and quantum angular momentum
- nateHI
- · Replies 3 ·
Graduate What are the properties of Rigged Hilbert Space compared to Hilbert Space?
- piareround
- · Replies 7 ·
High School Why does the EPR paradox fail to bypass the uncertainty principle?
- jobsism
- · Replies 118 ·
Graduate How do a and a^\dagger transform under time reversal transformation?
- wdlang
- · Replies 1 ·
Graduate Uncertainty about Uncertainty Redux
- Archfiend0
- · Replies 36 ·
Graduate A few more questions about quantum teleportation
- hammertime
- · Replies 11 ·
Graduate Is Quantum Suicide a Viable Concept in Real Science?
- JimReimer9
- · Replies 1 ·
Information Abou FTL Video Needed
- forex10
- · Replies 1 ·
Graduate [tex]\Phi^3[/tex] Quantum Field Theory
- n83fatahi
- · Replies 1 ·
Graduate Randomness being an intrinsic property? Quantum entanglement?
- SeventhSigma
- · Replies 13 ·
Graduate Why do irrational numbers appear in quantum physics?
- JJRittenhouse
- · Replies 5 ·
Graduate Uncertainty Principle - nature or human nature?
- SuccessTheory
- · Replies 18 ·
Graduate Dirac delta integrated from 0 to infinity
- Heimisson
- · Replies 4 ·
Graduate Why is the Green's function equal to the vacuum expectation of the field?
- pellman
- · Replies 5 ·
Graduate Express arbitrary state in second quantization
- daudaudaudau
- · Replies 3 ·
Undergrad Why don't home metals lose electrons in the photoelectric effect?
- accountkiller
- · Replies 5 ·
Graduate Spin vs. Helicity: Transformation under Poincare Group
- paweld
- · Replies 1 ·
Undergrad Does exciting an electron change the physical state of a molecule?
- Denver Dang
- · Replies 3 ·
Graduate The violation of energy conservation law?
- ndung200790
- · Replies 5 ·
Graduate How quantum foam relates to vacuum energy and hyperspace
- piareround
- · Replies 3 ·
Undergrad Does pauli exclusion principle
- thoms2543
- · Replies 1 ·
Graduate Is the expectation value of this commutator zero?
- IFNT
- · Replies 25 ·
Graduate What is the rationale behind quantum theory and the afterlife?
- eisenfaust
- · Replies 5 ·
Graduate What would happen in this double slit experiment?
- TimID
- · Replies 3 ·
Graduate Double slit experiment questions: interference, measurement, and wavefunction collapse
- paka
- · Replies 5 ·
Graduate Fermion creation and annihilation operators
- daudaudaudau
- · Replies 2 ·
Graduate Can the wave function collapse before being measured?
- least_action
- · Replies 2 ·
Graduate Is the Hong-Ou-Mandel effect a violation of the fair sampling assumption?
- zonde
- · Replies 20 ·
Graduate Photon stream impinging on half-silvered mirror
- Billyneutron
- · Replies 1 ·
Graduate Does the uncertainty principle apply to all particles?
- ldv1452
- · Replies 2 ·
Graduate Math of De-Broglie wavelength boggles me
- etamorphmagus
- · Replies 8 ·
Relativity and Quantum Entanglement
- least_action
- · Replies 4 ·
High School Light Grainy? Photons or Stream of Energy?
- snackster17
- · Replies 2 ·
Graduate Detecting Electron Interactions at a Slit in Double Slit Exp.
- the4thamigo_uk
- · Replies 3 ·
Graduate Why pesistent current in a normal metal ring is a surprise?
- wdlang
- · Replies 4 ·
Graduate Is the Uncertainty Principle a Limitation of Current Technology?
- nbprashanth
- · Replies 16 ·
Graduate What happens to a three-slit pattern if you detect only one slit?
- khkwang
- · Replies 10 ·
Graduate Understanding superposition and entanglement
- martyscholes
- · Replies 6 ·
Graduate How is equation 4.61 derived from n dot s in the Arbitrary Spin Operator?
- nateHI
- · Replies 3 ·
Graduate Heisenberg uncertainty derivation
- tungs10
- · Replies 3 ·
Graduate Can an observer be in a superposition?
- least_action
- · Replies 9 ·
Undergrad Where's the Photon in Electromagnetism?
- richerrich
- · Replies 5 ·
Graduate What is the derivation for the path integral formulation of quantum mechanics?
- WiFO215
- · Replies 4 ·
Graduate Path integral in coherent states
- topper
- · Replies 1 ·
Graduate Rigorous mathematical treatment of continuous eigenvalues in QM
- Goldbeetle
- · Replies 23 ·
Graduate Speed of light derived from Planck constant?
- zeusgm
- · Replies 4 ·
Graduate Particles in a negative energy region?
- nomadreid
- · Replies 1 ·
Graduate Why no Compton with Potoelectric effect?
- trizz10
- · Replies 2 ·
Graduate Significance of ((H,x),x) double commutator?
- Peeter
- · Replies 2 ·
Graduate Ionization Potential of molecules
- Karrar
- · Replies 2 ·
Graduate Energy shifts in time-independent perturbation theory
- ani4physics
- · Replies 3 ·
Graduate Energy eigenfunctions in time-independent perturbation theory
- Chopin
- · Replies 4 ·
Graduate Is the Spin 1/2 XXZ Model Integrable?
- wdlang
- · Replies 1 ·
Graduate Can spintronics overcome miniaturization limits in digital logic?
- Reylan
- · Replies 1 ·
Graduate The Definition of Waves in Quantum Mechanics
- snackster17
- · Replies 11 ·