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 Can there be non-trivial IR fixed points in asymptotically free theories?
- geoduck
- · Replies 1 ·
Undergrad What are Einstein's 3 postulates for Photo electric effect?
- uzman1243
- · Replies 2 ·
Graduate Hidden variable theories and Bell's theorem assumptions
- miosim
- · Replies 53 ·
Graduate SU(2): Get RHS from LHS of Expression
- intervoxel
- · Replies 2 ·
Graduate Nested Schrödinger's cat boxes with a hammer chain
- moriheru
- · Replies 20 ·
Graduate How do you know the change in ml for a transition?
- Jt00
- · Replies 1 ·
Graduate Analytical solution for bound state energies of infinite well
- Bob007
- · Replies 2 ·
Undergrad Light remaining in a perfectly reflecting room after removal
- doanr
- · Replies 1 ·
Graduate Fermi's Golden Rule Density of States
- I<3NickTesla
- · Replies 3 ·
Graduate Emuberable and Demumerable sets
- sweet springs
- · Replies 8 ·
Graduate Why does Dirac set m = 0.5ℏa for angular momentum magnitude 0.5ℏ?
- jamie.j1989
- · Replies 4 ·
Graduate Efficiency of non-linear optical device
- zhanhai
- · Replies 3 ·
Graduate Proving the Isomorphism Property of the Spinor Map in SL(2,C) and SO(3,1)
- gentsagree
- · Replies 2 ·
Graduate The simplest derivation of position operator for momentum space
- cryptist
- · Replies 6 ·
Graduate Understanding Scattering and Bound State Solutions in Quantum Mechanics
- Logan Rudd
- · Replies 1 ·
Graduate How Should I Think About the Dirac Equation
- bolbteppa
- · Replies 13 ·
Graduate Experimental Support of Shrodinger Equation
- Hertz
- · Replies 12 ·
Graduate Divergence of the Stress-Energy Tensor
- Paddyod1509
- · Replies 4 ·
Graduate RQM vs QM ( relativistic quantum mechanics vs quantum mechanics)
- moriheru
- · Replies 8 ·
Graduate What Are the Most Accurate Theories in Quantum Physics?
- nickisverygoo
- · Replies 2 ·
Graduate Understanding Traceless Proof for Gamma Matrices
- robotsheep
- · Replies 10 ·
Graduate Stationary States vs General Solution
- jaydnul
- · Replies 1 ·
Graduate Could the double slit experiment detect parallel dimensions?
- Martyn Adams
- · Replies 4 ·
Undergrad Characteristic Spectrum and the K-alpha line
- Baddum12
- · Replies 2 ·
Graduate The Quantum Computer and beamsplitter
- zrek
- · Replies 2 ·
Graduate Deriving speed of light from QED
- robcon
- · Replies 8 ·
Graduate Does entanglement survive if one particle falls into a black hole?
- jshrager
- · Replies 13 ·
Graduate Expectation Value vs Probability Density
- jaydnul
- · Replies 4 ·
Graduate Adjoint of Schrodinger Equation
- catsarebad
- · Replies 6 ·
Graduate Why Can Electrons Tunnel Through Barriers in Quantum Mechanics?
- songoku
- · Replies 4 ·
Graduate Hopf Algebras in Quantum Groups
- bolbteppa
- · Replies 2 ·
Graduate Has the double-slit experiment been conducted with multiple observers?
- Krasi_Gavrilov
- · Replies 2 ·
Graduate Interaction between light and hydrogen atom
- damosuz
- · Replies 1 ·
Graduate What is the difference between H and E in the equation Hψ = Eψ?
- terp.asessed
- · Replies 7 ·
Graduate Is Haag's Theorem Relevant for Solving QFT Problems?
- Arsenic&Lace
- · Replies 13 ·
Graduate Missing h-bar in showing SHO in terms of ANHIL and CREA operators is correct
- rwooduk
- · Replies 12 ·
Graduate On the Wave-Particle Duality property of light
- aditya ver.2.0
- · Replies 15 ·
Graduate Coordinate space matrix elements <x|H|x'>. what are these?
- catsarebad
- · Replies 2 ·
Graduate Why Does the Hopping Term in the Hubbard Model Project to Zero at Half-Filling?
- psi*psi
- · Replies 4 ·
Graduate Probability of finding a particle [concept behind it]
- catsarebad
- · Replies 3 ·
Graduate Requirement of Separability of Hilbert Space
- Kushagra Nigam
- · Replies 17 ·
Graduate Calculating Fourier Transform in Circular Wells
- dongsh2
- · Replies 2 ·
Graduate Uncertainty Principle mechanics
- terp.asessed
- · Replies 5 ·
Graduate Solutions of schrodinger equation contradicts HUP
- Maharshi Roy
- · Replies 5 ·
Graduate Pilot wave models and "no cross" rule
- bohm2
- · Replies 1 ·
Graduate Why does the partial trace give the reduced density matrix?
- naima
- · Replies 2 ·
Graduate Formula of Heisenberg Uncertainty
- songoku
- · Replies 7 ·
Graduate Stimulated Emission: De-exciting Electrons with Photons
- Shailesh Pincha
- · Replies 7 ·
Graduate Smoothness of potential energy and powers of momentum
- sweet springs
- · Replies 3 ·
Graduate Probability of Photoelectric Effect Occuring in the Context of Medical Imaging
- WoahWoah
- · Replies 2 ·
Graduate Determining bound states for delta function potential
- Logan Rudd
- · Replies 4 ·
Graduate Change of Basis For Pauli Matrix From Z Diagonal to X Diagonal Basis
- bohrpiphi
- · Replies 1 ·
Graduate Quantum vs. Classical Mechanic graphing
- terp.asessed
- · Replies 4 ·
Graduate Does the wave function really collapse into a state?
- Erland
- · Replies 18 ·
Graduate Dirac gammology - dimension of the algebra
- Loro
- · Replies 1 ·
Graduate Determinism in Coin Tosses: Does It Mean We Have Free Will?
- bland
- · Replies 2 ·
Graduate Meaning of Single Photon Interference Minima
- LikesIntuition
- · Replies 5 ·
Graduate QM questions: MO theory orbital combination
- kayan
- · Replies 4 ·
Graduate What are the Bound States for a Sum of Two Negative Delta-Function Potentials?
- Logan Rudd
- · Replies 4 ·
Graduate What does the double ket notation mean in entangled states?
- KFC
- · Replies 23 ·
Graduate Schrödinger Equation in the classical limit
- Erland
- · Replies 3 ·
Graduate Quarkonium: General Information
- buzsh
- · Replies 1 ·
Graduate Wavelength uncertainity for particle in a box
- Maharshi Roy
- · Replies 3 ·
Graduate Can an electron stand in the same place as a proton?
- Godparicle
- · Replies 12 ·
Graduate Phase of Orbital/Wavefunctions in Hydrogen 2px
- Mark S 2014
- · Replies 5 ·
Graduate That Heisenberg Uncertainity Principle
- PeterPeter
- · Replies 2 ·
Graduate Does the double-slit experiment reveal nature of probability rather than matter?
- Michael McShane
- · Replies 22 ·
Graduate Schrødinger equation deriving diff equation
- fisher garry
- · Replies 4 ·
Graduate Understanding Device Identification of Non-Orthogonal Quantum States
- RobikShrestha
- · Replies 19 ·
Graduate Identifying Projection Operators: Is Idempotence Enough?
- kini.Amith
- · Replies 2 ·
Undergrad What is the physical unit of teleport?
- vlemon265
- · Replies 5 ·
Graduate Commutator problem (position, momentum)
- Kentaxel
- · Replies 3 ·
Graduate How does wave-particle duality explain photon reflection?
- aditya ver.2.0
- · Replies 1 ·
Graduate If you have three things in a bra ket what does it mean?
- rwooduk
- · Replies 19 ·
Graduate High energies during wave function "collapse"?
- noahcharris
- · Replies 1 ·
Graduate Why does photons of a given frequency satisfy the Boltzmann distribution?
- center o bass
- · Replies 5 ·
Graduate Operators on infinite-dimensional Hilbert space
- linbrits
- · Replies 3 ·
Graduate What Is the Minimum Volume of Phase Space?
- center o bass
- · Replies 4 ·
Graduate Wave-particle duality at Macro scale?
- bohm2
- · Replies 108 ·
Graduate Does quantum mechanics allow determinism if we know all prior states?
- Johan0001
- · Replies 68 ·
Graduate Computing expectation value of Hamiltonian for two-level system
- talabax
- · Replies 11 ·
Graduate Unit Circle and Quantum Predictions [hidden variable model agrees with QM?]
- rlduncan
- · Replies 15 ·
Undergrad Double bonds and energy level
- terp.asessed
- · Replies 2 ·
Graduate Neumark dilation and entanglement
- naima
- · Replies 5 ·
Undergrad Does the intrepretation affect the measurement?
- MathematicalPhysicist
- · Replies 12 ·
Graduate How does QED explain charge interaction in the macro world?
- DennisChen
- · Replies 3 ·
Graduate Spin difference between entangled and non-entangled
- Alien8
- · Replies 194 ·
Undergrad Is the Energy Change in a Bohr Atom Always Equal to One Photon?
- Vishera
- · Replies 2 ·
Graduate Watching Electrons: Experiments in Feynman's Lectures
- Philip Van Hoof
- · Replies 9 ·
Graduate Beam splitting experiment with single photon
- entropy15
- · Replies 1 ·
Graduate Dirac delta function identities
- subny
- · Replies 1 ·
Graduate Seeking opinion of others on quantum systems control and estimation theory
- R D
- · Replies 4 ·
Graduate Concerning spherical potential wells
- moriheru
- · Replies 8 ·
Graduate Absorption of a photon by atom - where does the energy go?
- wotanub
- · Replies 2 ·
Graduate When can you apply Ehrenfest's theorem?
- Logan Rudd
- · Replies 3 ·
Graduate Mathematical description of Hilbertspace
- moriheru
- · Replies 19 ·
Graduate The Effective Lagrangian of the Electromagnetic Field
- r.sahebi
- · Replies 4 ·
Graduate How can a single photon remain a single photon in QED?
- ShayanJ
- · Replies 12 ·
Graduate TDSWE: Deriving Time Dependent Solutions from TISWE
- jaydnul
- · Replies 1 ·
Graduate Green Function SHO - Reading Materials & Math Background
- clumps tim
- · Replies 2 ·