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.
Threads
Graduate Normalization of vacuum state.
- kof9595995
- · Replies 10 ·
Graduate Proof of orthonormality of the hamiltonian when not real
- NicolaNorth
- · Replies 3 ·
Graduate Understanding Photon Slowdown and Acceleration in Material-Filled Space
- Delta2
- · Replies 2 ·
Graduate Kobayashi Maskawa Matrix Error ?
- Anne-Sylvie
- · Replies 3 ·
Graduate Schrodinger's Cat: Conscious Observer & Levels of Organization
- jbrussell93
- · Replies 5 ·
Graduate Is the Quantum Casino's Use of Euler's Formula Misleading?
- mraptor
- · Replies 5 ·
Graduate What is Seen in Atom Photographs?
- small_bang
- · Replies 9 ·
Graduate Question about torque in Stern Gerlach Experiment
- stevenb
- · Replies 7 ·
Undergrad Quantum Computers: Why They're Faster
- egmont
- · Replies 2 ·
Graduate Schroedinger equation with angular momentum operators
- damien88
- · Replies 3 ·
Graduate Plank's constant, phase integral and quantization of action
- phonon44145
- · Replies 3 ·
Graduate Single slit single particle interference
- San K
- · Replies 8 ·
Graduate Layman's questions regarding Measurement Problem
- lauchlan
- · Replies 48 ·
Graduate Deriving Equations for Pure State Quantum System
- StevieTNZ
- · Replies 7 ·
Graduate About expansion of wave functions
- hokhani
- · Replies 1 ·
Graduate Dirac delta wave function impossible?
- nonequilibrium
- · Replies 3 ·
Graduate In comparing different renormalization procedures why do we care about symmetry?
- alemsalem
- · Replies 1 ·
Graduate Currents and the quantum effective action
- muppet
- · Replies 2 ·
Graduate Bell's Theorem Correlations Velocity
- Rodsw
- · Replies 40 ·
Graduate Does Quantum Entanglement Occur During Electron and Positron Collisions?
- idea2000
- · Replies 11 ·
Graduate BRST Symmetry and unphysical polarizations
- lornstone
- · Replies 2 ·
Graduate How Should We Define Spin Angular Momentum in Relativistic Quantum Mechanics?
- kof9595995
- · Replies 5 ·
Undergrad How is light absorbed/reflected?
- webdesignmad
- · Replies 16 ·
Graduate Is Action Quantized? Quantum Mechanics Explored
- phonon44145
- · Replies 16 ·
Graduate Superposition experiment question?
- rollcast
- · Replies 4 ·
Graduate Normalization Conditions of Wave functions
- fscman
- · Replies 4 ·
Graduate Superluminal Light Propagation in Optical Fibres?
- Simon Bridge
- · Replies 11 ·
Graduate Why ghost fields(Faddeev-Popov ghosts) must be ''ghost''?
- ndung200790
- · Replies 2 ·
Graduate Is My Calculation of the Photon State in a Mach-Zehnder Interferometer Correct?
- sirchick
- · Replies 9 ·
Graduate What is adjoint representation in Lie group?
- ndung200790
- · Replies 5 ·
Graduate Quantum mechanical derivation of ohm's law?
- johnathon
- · Replies 4 ·
Graduate Angular Momentum the Full Operator Approach
- keniwas
- · Replies 3 ·
Graduate Albert's narrative argument against Everett-type theories
- bohm2
- · Replies 7 ·
Graduate Angular part of the wavefunction
- Chemist20
- · Replies 21 ·
Graduate Can A Single Photon Be Split Into 45 and 135 Degree Polarization?
- StevieTNZ
- · Replies 6 ·
Graduate Chern-Simons and massive A^{\mu}
- IRobot
- · Replies 2 ·
Graduate What is the interpretation of the Dirac equation and its current operator?
- MelvinSmith
- · Replies 6 ·
Graduate Bra-ket notation Schrodinger Equation
- tomothy
- · Replies 1 ·
Graduate Arbikosov vortex and Heisenberg
- Irid
- · Replies 1 ·
Graduate Feynmann's electron double slit experiment
- Lostinthought
- · Replies 1 ·
Undergrad Does a molecule really take on the shape like the VSPER model?
- rdr-s
- · Replies 1 ·
Graduate Lay Hypotheisis on the Universe (Do you think this is plausible?)
- Vanon
- · Replies 6 ·
Graduate SU(2)L, SU(2)R, other symmetric groups and SSB
- Anne-Sylvie
- · Replies 2 ·
Graduate Is Time an Entropic Result of Space?
- BPArnold
- · Replies 10 ·
Undergrad Quantum Mechanics: Multiple Pathways Explained
- sirchick
- · Replies 5 ·
Graduate Wave Packet Expansion: Physical Reason & Conservation Laws
- Black Integra
- · Replies 2 ·
Undergrad Help for a beginner Bell's Theorem
- asb84
- · Replies 4 ·
Graduate What exactly is intrinsic angular momentum (spin)?
- gnardog777
- · Replies 11 ·
Undergrad Why do electrons absorb light and jump to higher energy levels?
- Strafespar
- · Replies 24 ·
Graduate Consensus about Non-Locality & Spacetime
- stglyde
- · Replies 60 ·
Undergrad Wysips transparent solar cell.
- Rush2112
- · Replies 5 ·
Graduate Superselection Rule Results from Schrodinger Equation
- StevieTNZ
- · Replies 6 ·
Graduate What happens to an electron when a photon is reflected?
- kjamha
- · Replies 2 ·
Graduate Is superposition dependant on the measurement of sound as well as sight?
- BrandiGS
- · Replies 10 ·
Graduate Uncertainty Principle & Neutrino Probing: Can we Describe it w/ Semi-Classics?
- mraptor
- · Replies 2 ·
Graduate Why is Casimir operator to be an invariant of coresponding Lie Algebra?
- ndung200790
- · Replies 2 ·
Graduate How you come up with the wave func. in the first place?
- mraptor
- · Replies 16 ·
Graduate Superposition in quantum computing
- noman3k3
- · Replies 1 ·
Graduate Why explain with both vectors and functions
- mraptor
- · Replies 3 ·
Graduate Wavefunction Collapse: Timeline & Effects
- jewbinson
- · Replies 5 ·
Graduate Entangled photon polarization correlation
- gespex
- · Replies 6 ·
Graduate Path Integral Basics (Why dimension increases in the integrals?)
- Elwin.Martin
- · Replies 1 ·
Graduate What is the density of states?
- alemsalem
- · Replies 1 ·
Undergrad Can light excite an electron from ground state to a higher state?
- kjamha
- · Replies 7 ·
Graduate Peskin Equation (7.51): Analytic Continuation and Validity
- kof9595995
- · Replies 2 ·
Graduate Energy-momentum tensor for the Dirac spinor
- teddd
- · Replies 3 ·
Graduate Pion decay and neutrino oscillation in OPERA
- thenewmans
- · Replies 2 ·
Graduate Klein Gordon equation and particles with spin
- newphy
- · Replies 21 ·
Graduate How many ''charges'' are there in SU(2) and SU(3) symmetry?
- ndung200790
- · Replies 8 ·
Graduate The state space in quantum field theory
- nicf
- · Replies 17 ·
Graduate Cancellation of infrared divergence
- kof9595995
- · Replies 8 ·
Graduate Understanding the AC Stark Effect: A Brief Description
- Nusc
- · Replies 1 ·
Graduate Classical Stat Mech with Uncertain Initial Conditions vs. Quantum
- maverick_starstrider
- · Replies 1 ·
Graduate Unitary Quantum Cloner: Micro-Macro Entanglement & CHSH Inequality
- StevieTNZ
- · Replies 1 ·
Graduate The QED experiments Feynman describes in his Auckland lectures on Vega website
- roberto85
- · Replies 1 ·
Graduate How to find the Majorana matrices?
- ag_swe
- · Replies 2 ·
Graduate Even Wave Function in 1D Symmetric Potentials: Can We?
- hokhani
- · Replies 1 ·
Graduate Completeness of eigenvectors in a complete, commuting set
- Lakshya
- · Replies 10 ·
Graduate Question on uncertainty principle
- annie122
- · Replies 2 ·
Graduate Decoherence and the randomness of collapse
- bilkusg
- · Replies 40 ·
Graduate Quantum Zeno Effect and quantum decay
- Talisman
- · Replies 3 ·
Graduate Given a potential, qualitatively deducing the energy levels?
- nonequilibrium
- · Replies 3 ·
Graduate How to Calculate Clebsh-Gordan Coefficients in Fortran?
- fariba.ahmadi
- · Replies 1 ·
Graduate Spatial representation of field commutator
- blue2script
- · Replies 12 ·
Graduate Can one learn Q.Physics self taught?
- sirchick
- · Replies 1 ·
Graduate Physical meaning of zero eigenvalue
- dudy
- · Replies 4 ·
Graduate Why symplectic symmetry has N(N+1)/2 generators?
- ndung200790
- · Replies 1 ·
Graduate Annihilation operator acting on a Fock state
- L.W.C
- · Replies 3 ·
Graduate Meaning of Peskin equation (7.25)
- kof9595995
- · Replies 5 ·
Graduate Poisson Bracket to Commutator, What Does it REALLY Mean?
- maverick_starstrider
- · Replies 7 ·
Graduate Does Pauli's Exclusion Principle Apply to the Entire Universe?
- gibbson_e
- · Replies 4 ·
Graduate Why Superselection Rules are Physically Impossible
- Demystifier
- · Replies 26 ·
Graduate If one generator commutes with all other,why must it be generator of U(1)?
- ndung200790
- · Replies 1 ·
Graduate Bell inequality experiments and photon polarisation issue
- hollowsolid
- · Replies 7 ·
Graduate Can I Start with Leonard Susskind's QFT Lectures Without Prior Courses?
- BWV
- · Replies 1 ·
Graduate Understanding Wave Function and Schrodinger Wave Equation
- wasi-uz-zaman
- · Replies 5 ·
Graduate Hamiltonian and Commuting operators
- dudy
- · Replies 2 ·
Graduate Energy release from Graviton / Higgs Boson
- mjcguest
- · Replies 5 ·
Graduate Why isn't p^4 Hermitian for hydrogen-like l=0 wavefunctions?
- scorpion990
- · Replies 3 ·
Graduate Angular Momentum Eigenvalues/Significance of QN l
- "pi"mp
- · Replies 1 ·