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 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 ·
Graduate Plane wave expansion of massive vector boson
- guest1234
- · Replies 3 ·
Graduate Are non-relativistic and relativistic spinors mathematically identical?
- LarryS
- · Replies 15 ·
Graduate Concerning spherical Bessel and Neumann functions
- moriheru
- · Replies 14 ·
Graduate Ammonia two-state system with arbitrary a and b coefficients
- damosuz
- · Replies 6 ·
Graduate Can You Solve These Commutation Integrals?
- Breo
- · Replies 2 ·
Graduate QFT renormalization and Haag's theorem
- eoghan
- · Replies 19 ·
Graduate Quantum Vacuum Plasma Drive Potentially Confirmed by NASA
- Dotini
- · Replies 4 ·
Graduate How do wave functions differ between ground and excited states?
- terp.asessed
- · Replies 9 ·
Graduate Wave Function from ground to excited
- terp.asessed
- · Replies 2 ·
Graduate Infinitely large quantum number
- terp.asessed
- · Replies 1 ·
Graduate What is the precise mathematical claim in Haag's theorem?
- WannabeNewton
- · Replies 20 ·
Graduate What Is the Probability Density of a Non-Wave Electron in a Box?
- terp.asessed
- · Replies 3 ·
Graduate Physics of Quantum Entanglement
- UltrafastPED
- · Replies 2 ·
Graduate Derivation of the CHSH inequality
- Alien8
- · Replies 63 ·
Graduate I have difficulty understanding quantum physics
- Aichuk
- · Replies 15 ·
Graduate Quantum entanglement, is it real?
- Saruman
- · Replies 3 ·
Graduate How would I transmit 1 photon?
- mrspeedybob
- · Replies 13 ·
Graduate Wavefunction normalization vs 1/√(|x| )
- Maharshi Roy
- · Replies 3 ·
Graduate Question about measurement theory in Ballentine chapter 9
- VVS
- · Replies 14 ·