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 Density Matrix for Spin 1/2 particle in a magnetic field
- khfrekek92
- · Replies 2 ·
Graduate What is potential barrier against the photon penetration
- xhtp2000
- · Replies 1 ·
Undergrad The Casimir Effect: Explaining Exotic Matter
- ubergewehr273
- · Replies 1 ·
Graduate Quantum Entanglement - proven?
- Ward
- · Replies 7 ·
Graduate Observer Effect: Predetermined Change When Observed?
- velo city
- · Replies 16 ·
Graduate Conservation of energy and quantum weirdness
- ande4jo
- · Replies 1 ·
Graduate Randomness of radioactive decay
- mario0815
- · Replies 12 ·
Graduate Why does i-epsilon prescription not cure spin 1 propagator
- geoduck
- · Replies 1 ·
Graduate Entanglement and event horizon
- Jeroen Bruijns
- · Replies 4 ·
Graduate Can the Displacement Operator Rotate a Photonic State in Phase Space?
- naima
- · Replies 6 ·
Graduate Microcanonical ensemble density matrix
- Seban87
- · Replies 20 ·
Graduate Question about the no-cloning theorem
- jk22
- · Replies 4 ·
Graduate First order correction of wavefunction in degenerate perturbation
- zhanhai
- · Replies 1 ·
Graduate "Topological" properties of photons?
- PhysicsKid0123
- · Replies 2 ·
Graduate What are the problems with the Orch-Or Consciousness Theory?
- Markus_Johnson
- · Replies 10 ·
Graduate S-matrix structure of the lightest particle
- geoduck
- · Replies 1 ·
Graduate Extracting ground state in path integral
- geoduck
- · Replies 2 ·
Graduate Quick question regarding a step in a bra ket derivation
- rwooduk
- · Replies 2 ·
Undergrad Two slit experiment at home and interference
- jimmylegss
- · Replies 7 ·
Graduate How to trace over spinor indices?
- gentsagree
- · Replies 4 ·
Graduate Creating a Quantum Circuit for Measuring X⊗Z, Z⊗X, & Y⊗Y Simultaneously
- Travis091
- · Replies 1 ·
Graduate Deriving Tanabe Sugano diagram
- bearcharge
- · Replies 2 ·
Graduate Quantum entanglement and Einstein's theory of relativity
- Gabespound
- · Replies 2 ·
Graduate Validity of perturbation theory
- spaghetti3451
- · Replies 2 ·
Graduate A question about Matrix Mechanics
- naima
- · Replies 16 ·
Graduate Understanding 1PI Vertex and Self-Energy Conventions in Quantum Field Theory
- geoduck
- · Replies 3 ·
Graduate How to Calculate Wavefunction for Arbitrary Time?
- jimmycricket
- · Replies 11 ·
Undergrad Double Slit Experiment: Pattern Variations
- Thomasallenmd
- · Replies 2 ·
Graduate A variation of the Bell experiment
- dsoodak
- · Replies 3 ·
Graduate Classical Circular Polarization vs. Photon Spin Eigenstates
- LarryS
- · Replies 5 ·
Graduate Viability of particle in a box modeling
- center o bass
- · Replies 2 ·
Graduate Ket and Bra with the momentum j,m
- brombenzol123
- · Replies 4 ·
Graduate Polariton Vortices Created from Laser
- sanman
- · Replies 1 ·
Undergrad Double Slit Experiment: History & First Time Made by Electrons
- Safinaz
- · Replies 1 ·
Graduate Expectation value of a product of hermitian operators
- DrClaude
- · Replies 8 ·
Graduate Vacuum Fluctuations and a Preferred Frame
- MattRob
- · Replies 31 ·
Graduate Orbital angular momentum projection
- VantagePoint72
- · Replies 4 ·
Graduate Long distance quantum tunneling
- Stanley514
- · Replies 1 ·
Graduate Quantum Physics beginner books?
- stillwood
- · Replies 6 ·
Graduate How to get the conserved quantities of a integrable quantum system?
- Billy Yang
- · Replies 3 ·
Graduate Is Virtual Wave-Particle Duality a Misconception in Quantum Mechanics?
- brianhurren
- · Replies 3 ·
Undergrad Understanding Eigen Functions: A Beginner's Guide
- Alekside
- · Replies 3 ·
Graduate Vacuum port in optics, Casimir effect, fluctuations of vacuum or electrons.
- Spinnor
- · Replies 1 ·
Graduate How Do You Calculate the Normalization Constant for Radial Wave Functions?
- Khaleesi
- · Replies 6 ·
Graduate Question about the best method to use for finding wavefunctions and eigenvalues
- rwooduk
- · Replies 5 ·
Graduate How Do Particles Interact in Quantum Field Theory?
- BucketOfFish
- · Replies 4 ·
Graduate Trouble with Hermitian operators?
- 21joanna12
- · Replies 1 ·
Graduate Zero from which the energy is measured
- ShayanJ
- · Replies 8 ·
Graduate Hermite and Legendre polynomials
- terp.asessed
- · Replies 5 ·
Graduate Vertex corrections 1-loop order Yukawa theory
- WannabeNewton
- · Replies 4 ·
Graduate Path Integral From Heisenberg Uncertainty?
- bolbteppa
- · Replies 9 ·
Graduate The relationship of orbital hybridization between quantum mechanics
- soulhunter
- · Replies 5 ·
Graduate Wave Particle Duality & Uncertainty Principle: Which Came First?
- RQwtq
- · Replies 8 ·
Graduate Derivation of Planck Radiation Formula
- Fantasist
- · Replies 17 ·
Graduate Pauli exclusion and superposition states
- thegreenlaser
- · Replies 9 ·
Graduate Does Quantum Physics Suggest the Universe Requires a Mind?
- captainnima
- · Replies 7 ·
Graduate The Uncertainty Principle Uncertainty
- UncertaintyAjay
- · Replies 70 ·
Graduate Particle deflection in a Stern-Gerlach experiment
- Sam McGowan
- · Replies 3 ·
Graduate Quantum wave destruction question
- jimmylegss
- · Replies 19 ·
Graduate Deriving Boltzmann's Distribution
- harbour
- · Replies 10 ·
Graduate Lattice QED, most likely path of fields --> no interactions?
- Spinnor
- · Replies 2 ·
Graduate Single particle Density Matrix meaning
- jajabinker
- · Replies 2 ·
Graduate Help to clarify chemcial potential
- KFC
- · Replies 6 ·
Graduate What Does It Mean Particles Only Have Location if Measured?
- kyphysics
- · Replies 2 ·
Graduate Casimir effect excludes photon modes*, same for two slit interferometer?
- Spinnor
- · Replies 1 ·
Graduate Calculating a matrix element & first order shift
- StephvsEinst
- · Replies 2 ·
Graduate Does quantum field theory supersede quantum mechanics?
- arupel
- · Replies 5 ·
Graduate Quantizing the conjugate operator to adjoint operator
- geoduck
- · Replies 1 ·
Graduate Legitimacy in visualizing the orbital overlap
- bearcharge
- · Replies 6 ·
Graduate How does entanglement play a crucial role in quantum computing?
- jerromyjon
- · Replies 9 ·
Graduate Expecting the possible event of zero probability
- victorvmotti
- · Replies 5 ·
Undergrad Light & Electron Energy: Comparing Quantized Energies
- Gabriel Hoshino
- · Replies 7 ·
Graduate Fraction of electrons excited above fermi level
- blurrscreen
- · Replies 1 ·
Graduate Can the naked eye change the outcome of the double slit experiment?
- Thedavui
- · Replies 17 ·
Graduate Understanding Planck Scale Derivation: Energy, Length, and Uncertainty
- victorvmotti
- · Replies 3 ·
Graduate What is "smearing" and what is a "smeared field"
- Sicktoaster
- · Replies 7 ·
Graduate Pointless in talking about atomic term for a certain micro-state?
- bearcharge
- · Replies 4 ·
Graduate Must ensembles be homogeneous?
- normvcr
- · Replies 8 ·
Graduate What is a particle in quantum mechanics?
- arupel
- · Replies 3 ·
Graduate Superposition in the density matrix formalism
- VantagePoint72
- · Replies 4 ·
Graduate Navigating Wikipedia for Scientific Answers: Tips and Tricks for Laymen
- Whitefire
- · Replies 51 ·
Graduate Fine structure constant meaning
- TrickyDicky
- · Replies 6 ·
Graduate Question about quantum parallel worlds
- bland
- · Replies 9 ·
Graduate Time dependent scattering theory - cross section
- tom.stoer
- · Replies 0 ·
Graduate Find Energy Levels for Harmonic Oscillator w/ Stretch-Only Spring
- catsarebad
- · Replies 1 ·
Graduate Spinor Representations: Intuitive Understanding
- gentsagree
- · Replies 1 ·
Graduate Pseudoparticle Operators: Fermion or Boson?
- Gregory Gao
- · Replies 1 ·
Graduate Is the expectation value of momentum always zero for real wavefunctions?
- dyn
- · Replies 1 ·
Graduate About diagonal element of dipole
- KFC
- · Replies 10 ·
Graduate Effect of different atom on Compton Shift?
- Seydlitz
- · Replies 2 ·
Graduate Most probable electron location in Hydrogen ground state
- jaydnul
- · Replies 20 ·
Graduate Does Quantum Precession Contradict Traditional Spin Directions?
- Jimmy87
- · Replies 14 ·
Graduate Frank-Condon Principle - Potential Energy Surfaces
- elemis
- · Replies 3 ·
Graduate How Do Physicists Know That Quantum Superposition Does Exist?
- pink laser
- · Replies 18 ·
Graduate Why Is the Wave Function Often Expressed as Psi = Cos(kr - wt) + i Sin(kr - wt)?
- AL-Hassan Naser
- · Replies 6 ·
Graduate Heisenberg's Matrix Mechanics: An Understanding Review
- Pollock
- · Replies 3 ·
Graduate Vector under Chiral transformation
- PhyAmateur
- · Replies 1 ·
Graduate How Can a Hot, Vibrating Universe Remain Homogeneous?
- acesuv
- · Replies 1 ·
Graduate Action corresponding to photon emission
- semc
- · Replies 1 ·
Graduate Why Does an Operator in Quantum Mechanics Transform into a Matrix?
- Jdraper
- · Replies 3 ·