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 What is the significance of 2S+1 in understanding bosons and fermions?
- erok81
- · Replies 3 ·
Graduate Time dependent perturbation theory for density matrix
- paweld
- · Replies 1 ·
Graduate Why Do We Assume Ultraviolet Divergences are Physical
- maverick_starstrider
- · Replies 5 ·
Undergrad Need in depth understanding of Simple physic terms
- jcmartinez
- · Replies 1 ·
High School Scattering of light on objects
- philsmiley
- · Replies 1 ·
Graduate Why is j=0 to j'=0 forbidden by the parity rule if spin orbit interaction
- blueyellow
- · Replies 2 ·
Graduate Is photon a basic unit of information?
- morg
- · Replies 14 ·
Graduate Why Do Symmetry Breakings Differ with the Same Classical Lagrangian?
- ndung200790
- · Replies 13 ·
Graduate Difference between Fermions and Bosons in Feynman diagrams
- vcdfrexzaswq
- · Replies 5 ·
Graduate What Does the Double Slit Experiment Reveal About Quantum Reality?
- medman1234
- · Replies 2 ·
Graduate The Efficiency Loophole: A Local Hidden Variables Theory?
- mach567
- · Replies 70 ·
Graduate Absolute Zero - No Entropy -Quantum Jiggles?
- Quantum Bum
- · Replies 8 ·
Graduate Quantized Radiation Field: Where Am I Wrong?
- kof9595995
- · Replies 12 ·
Graduate Simple gamma matrices question
- Ameno
- · Replies 4 ·
Graduate Fermi energy (density of electron)
- royayash
- · Replies 1 ·
Graduate Virtual particles are not matter-antimatter, is it?
- Edi
- · Replies 16 ·
Graduate Why Represent the Photon Field with Four Potentials Instead of E and B Fields?
- captain
- · Replies 3 ·
Graduate Understanding Structured Reservoirs in Decay and Markow Approximation: Explained
- Carnot
- · Replies 1 ·
Graduate Quantum fluctuations and space
- Schreiberdk
- · Replies 2 ·
Graduate Deriving Exclusion Principle: Symmetric & Antisymmetric Wave Functions
- exponent137
- · Replies 8 ·
Bell's Experiment Explained for 5th Graders
- MEMoirist
- · Replies 16 ·
Graduate What makes Bose Einstein condensates so effective at slowing/stopping light?
- the riddick25
- · Replies 1 ·
Graduate Measurements corresponding to Exchange Operator
- Jolb
- · Replies 9 ·
Graduate Representing a wavefunction using bases
- Shaybay92
- · Replies 7 ·
Graduate Uncertainty Principle question
- stockr21
- · Replies 4 ·
Graduate Note to the derivation of Dirac equation
- exponent137
- · Replies 3 ·
Graduate What is the role of the spin variable in quantum chemistry?
- Amok
- · Replies 3 ·
Graduate Coherent electrons in double slit experiment?
- kof9595995
- · Replies 4 ·
Graduate Is wave-function collapse a REAL incident
- Soumya_M
- · Replies 38 ·
Graduate Gamma matrices projection operator
- choongstring
- · Replies 1 ·
Graduate How does parity affect particle exchange in para- and ortho-hydrogen?
- Rudipoo
- · Replies 2 ·
Graduate (in)coherent superposition and quantum erasure
- Ameno
- · Replies 6 ·
High School Are photons packets of electronic waves such as this below
- stevmg
- · Replies 5 ·
Graduate Substates don't evolve according to Schroedinger equation?
- rodsika
- · Replies 2 ·
Undergrad Position and Momentum: Uncovering the Mystery
- SUDOnym
- · Replies 1 ·
Graduate Where Can I Find Hamiltonians of the Standard Model in QFT?
- metroplex021
- · Replies 2 ·
Graduate Does photon loose energy/mass during travel?
- San K
- · Replies 1 ·
Graduate Conceptual question on measuring momentum of a particle
- SUDOnym
- · Replies 1 ·
Graduate Schrödinger equation with spin term
- Gavroy
- · Replies 1 ·
Graduate What is scattering by a potential and how does it affect a passing particle?
- Shaybay92
- · Replies 5 ·
Graduate How is quantum teleportation achieved through quantum entanglement?
- iRaid
- · Replies 6 ·
Graduate Quantum Teleportation: Future Human Transportation?
- touqra
- · Replies 12 ·
Graduate Can We Influence the Spin of Entangled Photons?
- San K
- · Replies 1 ·
Graduate Transition: Classical Mechanics to Quantum Mechanics
- go quantum!
- · Replies 2 ·
Graduate End of Uncertainty: Quantum Mechanics in Human Perspective
- CyberShot
- · Replies 7 ·
Graduate Generalized group for quantum mechanics
- jfy4
- · Replies 2 ·
Graduate How Many Photons in a Light Wave
- peter.ell
- · Replies 3 ·
Graduate What is a application of linear sigma model?
- ndung200790
- · Replies 5 ·
Graduate Wavefunction of a single particle
- venton
- · Replies 10 ·
Graduate Would like professional advice on a sci fi story.
- Brad12d3
- · Replies 7 ·
Graduate Does Exponential Decay Fail at the Quantum Level?
- aftershock
- · Replies 4 ·
Graduate Electron photographed for the first time
- luckis11
- · Replies 7 ·
Graduate Double-Slit Experiment: Detection Without Destruction?
- eloheim
- · Replies 5 ·
Graduate What is the significance of the infinite square well width in quantum mechanics?
- Miquelyn10
- · Replies 4 ·
Graduate Novice Guide to Understanding Bra-ket Notation
- JDude13
- · Replies 5 ·
Graduate Perturbation Theory: Calculating 2nd Approx of E in Hydrogen 2s State
- Gavroy
- · Replies 5 ·
Graduate How can particles undergo EM interactions *and* have definite strong isospin?
- depeche1
- · Replies 3 ·
Graduate Definition of 'good quantum number' after parity violation
- metroplex021
- · Replies 2 ·
Graduate Validity of Derivations of Schrödinger's Equation
- ObsessiveMathsFreak
- · Replies 13 ·
Graduate Does the Born Rule conflict with determinism in quantum mechanics?
- rodsika
- · Replies 29 ·
Graduate How to Grasp Quantum Mechanics and Hydrogen Models as a Physics Student?
- chenesai
- · Replies 4 ·
Graduate Any result that conflicts with the below theory of entanglement?
- San K
- · Replies 4 ·
Graduate Where Do Photons Come From and How Do They Embrace Wave-Particle Duality?
- Hooloovoo
- · Replies 10 ·
Graduate How does a wave function collapse?
- metalminded
- · Replies 8 ·
Graduate Is There a Quantum Approach to Understanding Latent Heat?
- Bassalisk
- · Replies 4 ·
Graduate Path integral formulation of non-relativistic quantum mechanics
- go quantum!
- · Replies 2 ·
Graduate Uncertainty principle with/out detectors
- hollowsolid
- · Replies 2 ·
Graduate Why Is the LSZ Formula Overlooked in Some QFT Texts?
- Lapidus
- · Replies 7 ·
Graduate What's wrong with this FTL experiment?
- San K
- · Replies 19 ·
Graduate Why is there no constant magnetic dipole-dipole interaction?
- Gavroy
- · Replies 4 ·
Graduate Understanding Destructive Interference in Electron Wave Functions
- jalebi
- · Replies 6 ·
Graduate Feynman rules (vertecies) for graviton
- Neitrino
- · Replies 7 ·
Graduate Hg vapor energy levels & Frank-Hertz experiment
- bentzy
- · Replies 12 ·
Graduate When Were Anomalous Correlations in Entangled Photons First Observed?
- jed clampett
- · Replies 2 ·
Graduate Bohr Model Postulates: Understand Discrete Angular Momentum Orbits
- Bassalisk
- · Replies 2 ·
Graduate Why the minima of potential of classical Lagrangian called ''vacuum expectation''?
- ndung200790
- · Replies 3 ·
Graduate Range of Different Photoelectron Kinetic Energies?: Photoelectric Effect
- PhysJs
- · Replies 7 ·
Graduate QM Definition of Center of Mass
- LarryS
- · Replies 5 ·
Graduate Bell tests: Singlet vs Triplet State
- jed clampett
- · Replies 2 ·
Graduate Finite-Temperature Schrödinger's equation
- Gavroy
- · Replies 4 ·
Graduate Time Independent Schrödinger equation.
- MixedHerbs
- · Replies 6 ·
Graduate Decoherence, Coherence, Pure State, Mixed State
- rodsika
- · Replies 44 ·
Graduate About Gauge invariance - again
- izh-21251
- · Replies 7 ·
Graduate Uncertainty Principle and Particle Calculation in the Past
- Nervous
- · Replies 1 ·
Graduate Why are energy eigenstates considered wavefunctions in quantum mechanics?
- jeebs
- · Replies 7 ·
Graduate Where do the extra particles go
- edguy99
- · Replies 4 ·
Graduate Non-Perturbative QFT without Virtual Particles
- rogerl
- · Replies 103 ·
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 Question about uncertainty princple?
- cragar
- · Replies 6 ·
Graduate Solving the Schrodinger equation
- spaghetti3451
- · Replies 4 ·
Graduate Quantum mechanics ground state
- jasony
- · Replies 6 ·
Graduate Understanding London Dispersion Force: Theoretical Derivation Explained
- 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 ·