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 Energy Conservation in an expanded 1D box
- dLo R6
- · Replies 3 ·
Graduate Does quantum mechanical definition of momentum require movement ?
- feynmann
- · Replies 21 ·
Graduate Copenhagen interpretation of Quantum Theory
- quddusaliquddus
- · Replies 49 ·
Graduate Hydrogen spectrum hyperfine structure
- edguy99
- · Replies 1 ·
Graduate Classical counterpart of the quantum |nlm> states
- wdlang
- · Replies 1 ·
Graduate What Causes the Expansion of Our Universe?
- saylem
- · Replies 30 ·
Graduate Choice of source photon production in entanglement experiments
- moving_on
- · Replies 2 ·
Graduate Does the Hartree Approximation Ignore Electron Interactions?
- chemstudent09
- · Replies 1 ·
Graduate Explaining quantum coherence to non-physicists
- Einstein Mcfly
- · Replies 1 ·
Graduate Velocity, density, ect. : air : molecules spinor field :?:?
- Spinnor
- · Replies 3 ·
Graduate What exactly is an oscillator in quantum physical context?
- Masna
- · Replies 3 ·
Graduate Has entanglement in quantum physics been experimentally validated?
- SDetection
- · Replies 30 ·
Graduate Does quantized spacetime reduce the number of spatial dimensions?
- theneedtoknow
- · Replies 4 ·
Graduate Elementary Particles with Zero Spin?
- LarryS
- · Replies 1 ·
High School Drawbacks of bohr's model of atom
- roshan2004
- · Replies 1 ·
Graduate How do you transition from the QED Lagrangian to classical electrodynamics?
- Ben Niehoff
- · Replies 5 ·
Graduate Why No Decoherence in Double Slit Experiment?
- Feeble Wonk
- · Replies 7 ·
Undergrad Why the Rutherford model can't explain hydrogen line spectra
- roshan2004
- · Replies 22 ·
Graduate Does QCD need the Lambda parameter outside perturbation theory?
- fermi
- · Replies 4 ·
High School Converting frequency to energy with Planck's equation
- Hertz
- · Replies 5 ·
Graduate Wave propagation, +z or -z
- sokrates
- · Replies 1 ·
Undergrad Quick Uncertainty in an Average Question
- peppies
- · Replies 1 ·
Graduate EM Field strength and plane waves
- parton
- · Replies 2 ·
Graduate Partition function for two harmonic potential wells with different force constants
- DanPhysChem
- · Replies 1 ·
Graduate Heisenberg uncertainty - uncertainty about its meaning
- studious
- · Replies 50 ·
High School What does it mean that two particles have opposite spins?
- hurricane89
- · Replies 10 ·
Graduate Laser question (Confinement factor and quantum well thickness)
- oronno
- · Replies 2 ·
Graduate Why do particles have spin 1/2 and what do negative spins mean?
- loup
- · Replies 7 ·
Graduate Von Neumann machine for the Universe
- p764rds
- · Replies 13 ·
Graduate Uncertainty with Hesienberg’s Uncertainty
- mysearch
- · Replies 3 ·
Graduate SF-Mott insulator transition and Wigner-mermin theorem
- wdlang
- · Replies 2 ·
Graduate Where Was the Observer Detector in the Double-Slit Experiments?
- SDetection
- · Replies 69 ·
Graduate Do virtual photons Doppler-shift?
- alxm
- · Replies 4 ·
Graduate How do I find the time evolution of a state with an operator in the Hamiltonian?
- KFC
- · Replies 5 ·
Undergrad Why is Fourier Integral Meaningless for f(x)=A*cos(ax)?
- caduceus
- · Replies 8 ·
Graduate Would gravity detect which slit in the double slit experiment?
- spikenigma
- · Replies 21 ·
Graduate Superposition/electron energy levels
- granpa
- · Replies 1 ·
Graduate What Are the NMR Operators I_x, I_y, and I_z?
- Kreizhn
- · Replies 10 ·
Graduate Helium Energy Level Diagram Analysis w/ Bohr Theory
- MonsieurWise
- · Replies 2 ·
Graduate Solving Perplexing Commutator for Simplification
- waht
- · Replies 3 ·
Graduate What Is a Noncommutative Integral and How Does It Impact Quantum Field Theory?
- zetafunction
- · Replies 1 ·
Graduate Why Does the HUP Spectrum Favor Particles Over Flows?
- Dmitry67
- · Replies 2 ·
Graduate Matter + Antimatter Bound State Mathematics
- Rade2
- · Replies 4 ·
Graduate Why Are IR and UV Divergences the Same?
- zetafunction
- · Replies 5 ·
Graduate How far apart can entangled electrons be, and how was this determined?
- hurricane89
- · Replies 5 ·
Graduate Inverse spectral problem in QM
- zetafunction
- · Replies 5 ·
Graduate Switching to a Matrix Hamiltonian - Conceptual Issues
- sokrates
- · Replies 3 ·
Undergrad Fair dice and two slit experiment
- Pjpic
- · Replies 3 ·
Undergrad Does observation collapse create reality 25 times per second?
- physics_boi95
- · Replies 8 ·
High School How Did Galileo's Experiment Measure the Speed of Light?
- Questioner...
- · Replies 3 ·
Graduate Tunneling effect by means of the instantons
- Davide86
- · Replies 2 ·
Graduate Degenerate basis, incomplete set of operators
- Pengwuino
- · Replies 2 ·
Graduate Could Our Universe Be Just a Brane in a Much Larger Reality?
- florin3k3
- · Replies 10 ·
Graduate Can fractals unify string theory and quantum physics?
- chawdawg
- · Replies 7 ·
Graduate Let us assume Feynman was wrong.
- Spinnor
- · Replies 102 ·
Graduate What is the Bloch sphere representation useful for?
- mtak0114
- · Replies 2 ·
Graduate Planck's constant equaled 1 instead of 6.63x10^-34
- flip92
- · Replies 11 ·
Graduate How Real Are Virtual Particles?
- Super_Jew
- · Replies 71 ·
Graduate Showing that wave functions are continuous
- AUMathTutor
- · Replies 12 ·
Graduate What are CP maps in QM good for?
- mtak0114
- · Replies 1 ·
Graduate Physical difference between singlet and triplet electron states
- Marthius
- · Replies 24 ·
Graduate Pure spin current vs. spin-polarized charge current?
- sokrates
- · Replies 1 ·
Graduate Is the Future Always Uncertain According to Quantum Mechanics?
- Naty1
- · Replies 4 ·
Graduate A lttile though on multiverses.
- Gedatsu
- · Replies 4 ·
Graduate Eigenvalues, eigenvectors and eigenfunctions in quantum mechanics
- oliver.smith8
- · Replies 3 ·
High School Why was the double slit experiment originally designed?
- florin3k3
- · Replies 13 ·
Graduate Find some clearly written books about quantum physics
- Cyberbrain
- · Replies 3 ·
High School Do electrons and protons annihilate when they collide?
- Invinoveritas
- · Replies 24 ·
Graduate Do particles traveling backwards in time have opposite charges?
- electrogluon
- · Replies 4 ·
Graduate Emission line width and the uncertainty principle
- EnSlavingBlair
- · Replies 14 ·
Graduate Finding averages of observables of Bell states
- poonintoon
- · Replies 1 ·
Graduate Does the brain use quantum mechanics?
- Albert George
- · Replies 7 ·
Graduate When is a hamiltonian separable and when isnt it?
- benbenny
- · Replies 7 ·
Graduate Can Infinite Universes Allow for Reincarnation?
- SpaceGuy50
- · Replies 1 ·
Graduate Why can we treat the proton as stationary in the hydrogen atom?
- elect_eng
- · Replies 4 ·
Graduate Do Quantum Orbitals in the Atom Overlap at Different Energy Levels?
- Quantom
- · Replies 8 ·
Graduate Reps of lorentz group and pauli and gamma matrices
- bartadam
- · Replies 9 ·
Graduate He+ Energy Level Diagram: Interaction Effects?
- MonsieurWise
- · Replies 3 ·
Graduate What Happens to One Electron in an Entangled Pair Affects the Other?
- Quantom
- · Replies 1 ·
Graduate Thought I had on the nature of randomness.
- ebon
- · Replies 6 ·
Graduate Is it possible to derive HUP from SE?
- sokrates
- · Replies 31 ·
High School Triplet State Explanation for Helium Electron Transitions
- MonsieurWise
- · Replies 6 ·
Graduate Amit Goswami's monistic idealism and consciousness in quantum physics
- Paolo 2008
- · Replies 2 ·
Graduate Is the Conservation of Angular Momentum in Quantum Mechanics Only Probabilistic?
- fermi
- · Replies 3 ·
Graduate Schrodinger Equation and wavefunction collapse
- feynmann
- · Replies 10 ·
Graduate Photons and Double Slit Experiment
- daisey
- · Replies 1 ·
Graduate Understanding Elastic Scattering in Electron-Electron Interactions
- sokrates
- · Replies 2 ·
Graduate Does entanglement violate special relativity?
- Unredeemed
- · Replies 107 ·
Graduate What is a completeness relation in quantum mechanics?
- nolanp2
- · Replies 4 ·
Graduate Energy eigenvalues for charged particle in harmonic potential with electric field
- ee_mike
- · Replies 4 ·
Graduate Was Bohr's version of quantum mechanics deeply flawed
- feynmann
- · Replies 16 ·
Graduate Massive and massless modes of the anchored string.
- Spinnor
- · Replies 1 ·
Graduate Finding Maximum Dispersion of Total Number (N)
- KFC
- · Replies 1 ·
Graduate Basic Quantum Transport Question
- carbon9
- · Replies 1 ·
Graduate Anomoly in calculations/standard value for electron energy levels
- EnSlavingBlair
- · Replies 5 ·
Graduate How does ψ'(x') = S(a)ψ(x) relate functions at different arguments?
- aiqun
- · Replies 2 ·
Graduate How fundamental is inverse square law?
- guhan
- · Replies 5 ·
Graduate Physicist's Double Slit Experiment: How is it Possible?
- Forestman
- · Replies 2 ·
Graduate The Clebsch-Gordan Theorem: Proving the Symmetric Spinor Tensors as IRR of SU(2)
- sshaep
- · Replies 2 ·
Graduate How can measuring particle handedness transmit information faster than light?
- kashiark
- · Replies 23 ·