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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Undergrad Quantum mechanics books for self-study before taking a course
- EverGreen1231
- · Replies 1 ·
Graduate What is the gauge boson for magnetism and its relation to electricity?
- jaydnul
- · Replies 4 ·
Graduate Hesienberg Uncertanity Principle
- Quarlep
- · Replies 6 ·
High School Alpha Rays and the Movement of Atoms' Nucleus
- onurbeyaz
- · Replies 2 ·
Graduate What makes an outcome random if coin flips tend toward 50-50?
- Jabbu
- · Replies 22 ·
Graduate Electron Positron Annihilation
- Rob Hoff
- · Replies 12 ·
Graduate Question about the Quantum Zeno Effect
- Gerinski
- · Replies 5 ·
Graduate Spin Direction for Massless Particles
- LarryS
- · Replies 8 ·
Graduate Energy release when H atoms form NH2 molecule
- starrlordd
- · Replies 19 ·
Graduate Position-momentum commutation relation
- jety89
- · Replies 7 ·
Graduate Does the wf entangle everything in the neighborhood?
- maline
- · Replies 1 ·
Graduate Shifting of the wall problem II
- tom.stoer
- · Replies 46 ·
Graduate "Asking photons where they've been" -- the DFBV experiment
- RUTA
- · Replies 5 ·
Graduate When does spontaneous emission create a coherent superposition of states?
- vtahmoorian
- · Replies 3 ·
Graduate Is There Absolute Proof of the Casimir Effect and Inflation Theories?
- spacecadet11
- · Replies 1 ·
Graduate Quantum eraser thought experiment?
- Johan0001
- · Replies 15 ·
Graduate Quantum Bayesianism: Resolving the Interpretation Problem of Quantum Mechanics
- microsansfil
- · Replies 8 ·
Graduate Spontaneous generated coherence
- vtahmoorian
- · Replies 2 ·
Graduate Naimark extension for continuous variables
- atyy
- · Replies 2 ·
Graduate Bell's theorem and local realism
- TrickyDicky
- · Replies 264 ·
Graduate The Frothy Space-Time Quantum Foam What is beyond the Foam?
- starrlordd
- · Replies 1 ·
Graduate What is the explanation for the strange behavior of matter at a quantum level?
- samgrace
- · Replies 30 ·
Undergrad Adding Two Spins to Vector Quantities
- Quarlep
- · Replies 2 ·
Graduate Renormalization of the non-linear [itex]\sigma[/itex] model
- synoe
- · Replies 1 ·
Graduate Z factor in renormalization disappeared?
- geoduck
- · Replies 1 ·
Graduate Transition dipole moment for hydrogen 1s to free state
- semc
- · Replies 3 ·
Graduate Commutator of function of operators
- kini.Amith
- · Replies 8 ·
Graduate How Does Quantum Entanglement Work in Physics?
- QuantumPhys
- · Replies 17 ·
Graduate There is only one electron in the universe
- microsansfil
- · Replies 3 ·
Graduate Does position measurement collapse to a delta function or a Gaussian spike?
- Dale
- · Replies 89 ·
Graduate Are shell electrons accompanied by virtual neutrinos?
- Michael S
- · Replies 7 ·
Graduate What is the solution to the shifting of the wall problem in quantum mechanics?
- kini.Amith
- · Replies 14 ·
Graduate Momentum and energy eigenvalues
- dyn
- · Replies 7 ·
Graduate Quantum particle scattering in rectangular waveguide with potential step
- skujesco2014
- · Replies 15 ·
Graduate Quantum Fluctuations and Big Bang
- bgq
- · Replies 2 ·
Graduate What happens with non orthogonal eigenvectors
- jk22
- · Replies 9 ·
Graduate How to Solve the Dirac Equation for a Two-Particle System?
- nakulphy
- · Replies 5 ·
Graduate Momentum cutoff equivalent to discretizing space?
- geoduck
- · Replies 1 ·
Graduate Do interference patterns in double slit experiments arise from parallel universes?
- Calabi.Yau
- · Replies 2 ·
Graduate A few conceptual questions on time evolution of quantum states
- "Don't panic!"
- · Replies 18 ·
Graduate Susskind about QM - Reversed Time - Experiment?
- Omega0
- · Replies 2 ·
Graduate Application of the Fokker-Planck equation
- alecrimi
- · Replies 1 ·
Graduate Why does SU(2) appear in both flavor and spin quantum numbers?
- TrickyDicky
- · Replies 1 ·
Graduate Eigenfunctions corresponding to a particular energy value
- hokhani
- · Replies 1 ·
Graduate Spin precession vs alignment in magnetic field
- 43arcsec
- · Replies 11 ·
Undergrad Does Energy Determine the Spread of Matter in Space?
- neomahakala108
- · Replies 10 ·
Graduate Quadrupole Decay Rate E2 Angular Dependence
- MisterX
- · Replies 1 ·
Graduate Are Photons Capable of Traveling Faster Than Light?
- anorlunda
- · Replies 3 ·
Graduate (A bit for fun) Putting a Human in Superposition
- QuestionMarks
- · Replies 21 ·
Graduate Hermite representation for integrals?
- Mniazi
- · Replies 4 ·
Graduate Complete positivity and quantum dynamics
- JorisL
- · Replies 3 ·
Graduate Spin-Orbit Interaction - Meaning and Some Mathematics
- Sunnyocean
- · Replies 1 ·
Undergrad Is There an Optimal Resonant Frequency for Light Oscillations?
- Rob Hoff
- · Replies 5 ·
Graduate Entanglement and physical spacelike connection
- Jonathan Scott
- · Replies 3 ·
Graduate What is wave of photon? oscillation of something in space?
- pastelchu
- · Replies 39 ·
Graduate Some questions about commutation relation
- zbnju
- · Replies 2 ·
Graduate Zeeman Effect, Angular Momentum States, Dipole vs No Dipole.
- Dindimin09
- · Replies 1 ·
Graduate De Broglie's model: how do electron waves interfere?
- Yashbhatt
- · Replies 3 ·
Graduate How do finite photon wave packets produce single frequencies?
- exmarine
- · Replies 5 ·
Graduate Atomic excitation via photon absorption
- tyneoh
- · Replies 10 ·
Graduate Why Doesn't the Electromagnetic Force Boson Have a Charge?
- Rob Hoff
- · Replies 26 ·
Graduate Relation between QED photon frequency and classical EM frequency
- apb86
- · Replies 2 ·
Graduate Dirac on Spreading Wave Packets
- anorlunda
- · Replies 4 ·
Graduate What happens to infinitesimal time in path integral
- Ravi Mohan
- · Replies 5 ·
Graduate Can We Control the Higgs Boson and Its Mechanism for Mass?
- spacecadet11
- · Replies 1 ·
Graduate The state of two identical bosons
- Wuberdall
- · Replies 4 ·
Graduate Why do energy levels split in spin-orbit coupling?
- Sunnyocean
- · Replies 10 ·
Undergrad Stern-gerlach with hydrogen atoms
- cragar
- · Replies 5 ·
Graduate Nick Bostrom's Simulation Hypothesis
- wheelersbit
- · Replies 2 ·
Graduate How to interpret rotational, electronic, vibrational energy levels
- fog37
- · Replies 1 ·
Undergrad Why does stronger nuclear attraction make orbital energy more negative?
- kay
- · Replies 3 ·
Undergrad Electrons in s-robital shielding outer electrons
- kay
- · Replies 2 ·
Graduate How Can I Write an Operator in the Coupled and Uncoupled Basis?
- Sunnyocean
- · Replies 5 ·
Graduate Difference between wavefunction ψ(r) and ket |ψ>, and momentum quantisation
- dyn
- · Replies 32 ·
Graduate NASA's New Space Engine: SRF Resonating Cavities
- zincshow
- · Replies 1 ·
Graduate The physical world cannot be a single history
- RUTA
- · Replies 16 ·
Undergrad Why do electron shells have specific sizes and occupancy limits?
- PurposeNation
- · Replies 9 ·
Graduate What is the experimental basis for Einstein's conclusion on the Helium atom?
- AntonHoltz
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Graduate Is There an Error in the Third Dirac Current Equation?
- woodland
- · Replies 3 ·
Graduate Observer vs Natural phenomenon
- jaydnul
- · Replies 2 ·
Undergrad Electron orbital velocity in hydrogen atom?
- carrz
- · Replies 49 ·
Graduate Can a two-qubit state be proven to be non-entangled using contraposition?
- JorisL
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Graduate Any ideas on this hypothesis concerning the universe?
- Silvers931
- · Replies 1 ·
Graduate Simplifying expression with gamma matrix and slashes
- besprnt
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Graduate Does the Born rule extend to continuous position measurement over time?
- nomadreid
- · Replies 3 ·
Graduate Which type of wave does de Broglie's theory suggest for matter?
- kay
- · Replies 2 ·
Graduate Do energies interact to create matter or vice versa?
- neomahakala108
- · Replies 14 ·
Undergrad Do AB and BA always exist in matrix multiplication?
- dyn
- · Replies 15 ·
Graduate Differentiation between massless Bosons
- James Carter
- · Replies 2 ·
Graduate Negative Energy in Quantum Mechanics: Can Particles Exist?
- Gebri Mishtaku
- · Replies 6 ·
Graduate Stern-Gerlach Experiment (spatial consistency of the magnetic moment)
- nmbr28albert
- · Replies 1 ·
Graduate Do wavefunctions always need to be normalised?
- Dindimin09
- · Replies 1 ·
Graduate Positrons are electrons traveling backward in time?
- NUCLIDES
- · Replies 12 ·
Graduate Can a dimensionless point have intrinsic spin and create forces?
- LotusPond_14
- · Replies 50 ·
Graduate History and origin of amplitude summation in QFT
- BucketOfFish
- · Replies 5 ·
Graduate Quantum vacuum in proximity of matter
- markuslig
- · Replies 7 ·
Graduate Can an electron be in more than two places at once?
- jebii
- · Replies 20 ·
Graduate Separation of the centre of mass motion
- pat1enc3_17
- · Replies 3 ·
Graduate Relation between the spinor and wave function formalisms
- nmbr28albert
- · Replies 5 ·
Graduate No drama quantum electrodynamics theory from spinor electrodynamics
- akhmeteli
- · Replies 77 ·