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.
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Graduate Is time reversal broken in an atom with nonzero magnetic moment?
- wdlang
- · Replies 1 ·
Graduate Are Fermions and Bosons Responsible for the Force Behind a Punch?
- robertroman10
- · Replies 5 ·
Graduate Quantum theory has affected technological advances?
- Jimbrady57
- · Replies 10 ·
Graduate Can all angular momentum components be zero if z-component is measured?
- cragar
- · Replies 6 ·
Graduate Solving the Schrodinger equation
- spaghetti3451
- · Replies 4 ·
Graduate Quantum mechanics ground state
- jasony
- · Replies 6 ·
Graduate Derivation of the London dispersion force potential energy formula
- Gavroy
- · Replies 3 ·
Graduate [Novice] Feynman Diagram for Electron Excitation
- JDude13
- · Replies 16 ·
Graduate Far-apart double slit experiment
- whoperj
- · Replies 1 ·
Graduate Checking if Three Operators Form a 3-Vector with SO(3) Commutation Relations
- jfy4
- · Replies 3 ·
Graduate Sign of the gyromagnetic ratio
- Jarl
- · Replies 2 ·
Graduate Bell violation with extra particles
- edguy99
- · Replies 5 ·
Graduate Some lines are called resonant
- vladivostok
- · Replies 4 ·
Graduate Photon vs the electric field E and magnetic field B
- xylai
- · Replies 6 ·
Graduate Why we know the renormalization work to all order in renormalizable theory?
- ndung200790
- · Replies 6 ·
Graduate Why do bosons prefer to occupy the same ground state?
- Shaybay92
- · Replies 10 ·
Graduate Renormalization as a dielectric
- RedX
- · Replies 1 ·
Graduate Laser Light & HUP: Understanding How Position & Momentum Affect Each Other
- LarryS
- · Replies 3 ·
Graduate Can someone explain, simply, hidden nonlocality/locality? EPR Paradox?
- SeventhSigma
- · Replies 23 ·
Graduate What is the significance of the Klein Paradox in particle physics?
- go quantum!
- · Replies 1 ·
Graduate Average of momentum for stationary state
- CyberShot
- · Replies 5 ·
Graduate Weight diagrams and Lie algebras
- metroplex021
- · Replies 2 ·
Graduate Why isn't commutation transitive?
- metroplex021
- · Replies 4 ·
Graduate Wavevector in infinite square well
- Master J
- · Replies 4 ·
Graduate [Novice] Young's Double Slit Experiment and the Quantum Cult
- JDude13
- · Replies 1 ·
Graduate 1st to 2nd quantization, potential approximates interactions?
- friend
- · Replies 12 ·
Undergrad Probability density of photons
- Gavroy
- · Replies 17 ·
Graduate What Determines the Equilibrium Separation Between Atoms in a Lattice?
- acherentia
- · Replies 3 ·
Graduate Bell's theorem and EPR-Bohm arithmetic for spin-1/2 particles
- Gordon Watson
- · Replies 21 ·
Graduate How can polarisation by angle 45 degrees be represented in quantum mechanics?
- Jamma
- · Replies 12 ·
Graduate Role of particle's diameter in Quantum Mechanics
- SamRoss
- · Replies 7 ·
Graduate What Happens to Wave-Particles During Wavefunction Collapse?
- 3nTr0pY
- · Replies 7 ·
Graduate Polarizability and permittivity
- Gavroy
- · Replies 3 ·
High School Can Earth's Electromagnetic field block asteroids?
- alexhenderson
- · Replies 1 ·
Graduate What Are Clebsch Gordan Coordinates in Quantum Mechanics?
- logearav
- · Replies 2 ·
Graduate Particle in abox : continuous functions problem
- g.prabhakar
- · Replies 3 ·
Graduate Quantum fluctuations and Inflation
- rodsika
- · Replies 1 ·
Graduate Buckyball Double Slit Experiment
- rodsika
- · Replies 22 ·
Graduate Idler behavior post signal detection in DCQE
- San K
- · Replies 1 ·
Graduate Bell's theorem and the DrChinese Challenge?
- Gordon Watson
- · Replies 16 ·
Graduate Pure State without Superposition possible?
- rodsika
- · Replies 1 ·
Undergrad What Causes Electrons to Emit Light?
- TheJoninator
- · Replies 1 ·
Graduate How to reach the conclusion that L=0 and S=0 if the shell is filled?
- runnerwei
- · Replies 1 ·
Graduate What Are Commutators and Their Role in Quantum Mechanics?
- schumi1991`
- · Replies 4 ·
Graduate Review Articles Bell Test experiments
- hawaiifiver
- · Replies 2 ·
Graduate Understanding Atom-Photon Interaction: How Long Will an Electron Hold Energy?
- QuarkCharmer
- · Replies 3 ·
Graduate Can the Lippmann-Schwinger equation be integrated over negative r values?
- Manojg
- · Replies 1 ·
Graduate Are Chemical Reactions Quantumly Indeterminate?
- wawenspop
- · Replies 7 ·
Graduate Why dont the quarks in neutrons annhialate?
- Jarfi
- · Replies 1 ·
Undergrad Speed of free electrons in vacuum, plasma and superconductors?
- marion.s
- · Replies 15 ·
Graduate Electron diffraction from crystals
- blueyellow
- · Replies 3 ·
Graduate Why Is It Called Space Quantization in Quantum Mechanics?
- Roo2
- · Replies 13 ·
Graduate Stochastics mechanics and early Universe
- Dmitry67
- · Replies 2 ·
Graduate Understanding 2nd Order Correlation in Fock States and Density Functions
- babylonia
- · Replies 3 ·
Graduate Ground state energy difference between rigid rotors and harmonic oscillators
- texans57
- · Replies 3 ·
Undergrad What does 'square' signify in quantum mechanics potentials?
- spaghetti3451
- · Replies 6 ·
Graduate Why 2-point correlation function diagram have only two external legs?
- ndung200790
- · Replies 2 ·
Graduate Understanding Quantized Conductance in Nano-sized Objects
- Master J
- · Replies 1 ·
Graduate What is Wavefunction Normalization?
- totentanz
- · Replies 6 ·
Graduate Find Complex Conjugate of Wave Function in QM Mechanics Book
- CyberShot
- · Replies 6 ·
Graduate Even Real Particles don't exist Aage Bohr
- rogerl
- · Replies 68 ·
Graduate Conceptual question on wave-particle duality (electron microscope)
- AStaunton
- · Replies 5 ·
Graduate Double-Slit Experiment and Michelson Interferometer
- exmarine
- · Replies 1 ·
Graduate Absorbtion lines in spectrum question
- AStaunton
- · Replies 6 ·
Undergrad What is a perturbation and how does it affect a system in equilibrium?
- oraclelive
- · Replies 1 ·
Graduate Where to find papers on the quantum rod and tipping rod problem
- jackdamiels
- · Replies 2 ·
Graduate Boundary conditions in the infinite square well
- MisterMan
- · Replies 5 ·
Graduate How Does Antisymmetry Define Electron States in Quantum Chemistry?
- kof9595995
- · Replies 5 ·
Graduate Sakurai's proof of the Optical Theorem
- vega12
- · Replies 4 ·
Graduate Bell's theorem and QM: Peres' conclusion and terminology?
- Gordon Watson
- · Replies 3 ·
Graduate Loop corrections to the propagator
- LAHLH
- · Replies 6 ·
Graduate QED Predictions of fine structure constant and g-factor
- curtdbz
- · Replies 1 ·
High School Ionization energy of electrons?
- kraphysics
- · Replies 6 ·
Graduate Explicit form for representing two spin 1/2 system
- onsagerian
- · Replies 1 ·
Graduate What's wrong with this local realistic counter-example to Bell's theorem?
- Gordon Watson
- · Replies 177 ·
Graduate Why is the lagrangian polynomial in fields and derivatives
- IRobot
- · Replies 2 ·
Graduate Correspondence principle in arbitrary coordinates
- QuantumCosmo
- · Replies 1 ·
Undergrad How does diffraction cause interference
- peter.ell
- · Replies 1 ·
Undergrad Is Light Capable of Being Polarized in Multiple Directions?
- davidfur
- · Replies 3 ·
Graduate Free Electron Density of States question
- Master J
- · Replies 2 ·
Undergrad Why does light reflect off mirrors like a bouncing ball?
- nhmllr
- · Replies 4 ·
Undergrad What does a potential well graph actually show?
- Shaybay92
- · Replies 7 ·
Graduate Does the Heisenberg limit apply to single particles and weak measurements?
- StevieTNZ
- · Replies 2 ·
Graduate Understanding Schur's Lemma in the Context of Free Particles
- WiFO215
- · Replies 18 ·
Graduate Why does the uncertainty principle imply randomness
- Sleve123
- · Replies 7 ·
Undergrad How do you compare energy transmitted by light and sound waves?
- macman83
- · Replies 6 ·
Graduate Consciousness: Objective - Subjective
- A Beginner
- · Replies 1 ·
Graduate Fermi's Golden Rule - Inelastic collision probability
- Master J
- · Replies 2 ·
Graduate Young Double Slit experiment, single photons
- Mukilab
- · Replies 5 ·
Graduate Lorentz invariant lagrangian density
- naos
- · Replies 3 ·
Graduate Why do observables require linear operators?
- QuantumCosmo
- · Replies 5 ·
Graduate Is Quantum Statistical Mechanics a Quantum Field Theory?
- Schreiberdk
- · Replies 2 ·
Graduate Infinite Charged Electron in QFT
- rogerl
- · Replies 89 ·
Graduate Entangled Particle Communication (again)
- wawenspop
- · Replies 16 ·
Graduate Quantum Field Theory and Perturbation Approximation
- rogerl
- · Replies 14 ·
Undergrad How do electrons maintain a stable distance from the nucleus?
- Mukilab
- · Replies 4 ·
Graduate Shape resonance in electron collisions with N2 and O2
- Thermodave
- · Replies 4 ·
Graduate Understanding Eq (4.19) of Peskin-Schroeder
- praharmitra
- · Replies 3 ·
Graduate What oscillates in an electron?
- PlusCrime
- · Replies 2 ·
Graduate Position of an electron with exactly 0 momentum
- LostConjugate
- · Replies 11 ·