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 What is the physical system that follows the Pauli exclusion principle?
- Tomer
- · Replies 13 ·
Graduate Quantum entanglement and wireless electricity
- rpcarnell
- · Replies 6 ·
Graduate 1st order pertubation on 2 level system
- luxiaolei
- · Replies 1 ·
Graduate Could Zero-Point Energy Be Weaponized?
- Mind Bender
- · Replies 1 ·
Graduate 1st order Pertubation energy and wavefunction
- luxiaolei
- · Replies 2 ·
Undergrad Light intensity and polarization
- gespex
- · Replies 3 ·
Graduate Position and Momentum Operators
- Unit
- · Replies 3 ·
Graduate If all states are stationary, what causes atoms to radiate then?
- Raziel2701
- · Replies 5 ·
Graduate My personal criticism to Quantum theory and Human conscience
- alecrimi
- · Replies 4 ·
Graduate Fine structure correction in H atom
- McLaren Rulez
- · Replies 2 ·
Graduate 2 Time Dimension in the Quantum Realm?
- stglyde
- · Replies 4 ·
Graduate Why Consider Our Position Between Past and Future in Quantum Physics?
- ThomasRK
- · Replies 1 ·
Graduate Solution of Schrodinger equation for free electron
- u_know_who
- · Replies 3 ·
High School Does light lose any any energy in a vacuum?
- Red monkey
- · Replies 1 ·
Graduate Need a book that explains linear vector space
- trex
- · Replies 1 ·
Graduate Verifying Lorentz algebra commutation relations from Peskin & Schroeder 3.18
- DivergentMind
- · Replies 7 ·
Graduate Updates on Penrose Quantum Mirror Experiment
- stglyde
- · Replies 3 ·
Graduate Pauli Matrices: Calculating Expression
- Amok
- · Replies 3 ·
Graduate Misunderstanding about measuring the spin of the electron
- micromass
- · Replies 21 ·
Graduate Scattering theory - Regular solution
- personperson
- · Replies 6 ·
Graduate Is light a photon or a wave? (concrete question)
- nonequilibrium
- · Replies 3 ·
Graduate Two-level atom Hamiltonian transformation with Wigner D matrix
- Arturs C.
- · Replies 2 ·
Graduate Are Units Truly Fundamental in Physics According to Duff's Theory?
- exponent137
- · Replies 1 ·
Graduate Do Gravitons Attract Other Gravitons?
- mjacobsca
- · Replies 4 ·
Graduate Can neutrons be used to stablize other particles?
- Quasitrium
- · Replies 10 ·
Graduate Is the following correct about virtual particles
- thenewguy1
- · Replies 3 ·
Graduate Hamiltonian with position spin coupling
- yuanyuan5220
- · Replies 1 ·
Graduate How Virtual Particles Give Rise to the electromagnetic force
- AustinLee
- · Replies 2 ·
Graduate Wigner Matrix or Wigner D-Matrix?
- TheDestroyer
- · Replies 2 ·
Undergrad Do Electrons Behave Like Bar Magnets?
- gespex
- · Replies 2 ·
Graduate Can quantum superposition help decide poker hands?
- NetMage
- · Replies 1 ·
Graduate Electronic Excitation: Absorbing and Re-emitting Photons
- AlKindi
- · Replies 8 ·
Graduate Entanglement & GR: Can We Measure Universe Info?
- mjames
- · Replies 13 ·
Graduate Is Feynman's QED book still relevant to modern quantum physics?
- KingBigness
- · Replies 28 ·
Graduate Are wave functions and quantum waves synonyms?
- stglyde
- · Replies 6 ·
Undergrad How does the LS coupling scheme work?
- ohhhnooo
- · Replies 3 ·
Undergrad Alpha Decay from Uranium: Electrical or Strong Nuclear Force?
- IWantToLearn
- · Replies 5 ·
Graduate A Bell Theorem with no locality assumption?
- DrChinese
- · Replies 79 ·
Graduate New (apparent) confirmation of virtual particles.
- danR
- · Replies 21 ·
Graduate Is biological life a product of a probability wave
- paradigm64
- · Replies 1 ·
Graduate Quantum fluctuations and momentum
- e2m2a
- · Replies 1 ·
Graduate Virtual particles and quantum fluctuation
- No-where-man
- · Replies 25 ·
Undergrad Phonon vs Photon: What's the Difference?
- Nucengable
- · Replies 13 ·
Graduate Physical significance of normalizing a wave function?
- saravanan13
- · Replies 3 ·
Graduate Quantization of vector field in the Coulomb gauge
- diracologia
- · Replies 4 ·
Graduate The double slit and wave particle nature.
- Hunt307
- · Replies 1 ·
Graduate What is the definition of particle(s) in QM?
- nonequilibrium
- · Replies 2 ·
Graduate Electric charge in quantum field theory
- paweld
- · Replies 1 ·
Graduate Square of modified Dirac equation
- cbetanco
- · Replies 2 ·
Graduate Where in physics does randomness occur?
- Jarfi
- · Replies 1 ·
Graduate Stability of Unstable Particles at High Energies: Third Generation
- a dull boy
- · Replies 1 ·
Graduate Calculating Vacuum Fields at Different Frequencies
- vivek.iitd
- · Replies 1 ·
Graduate Is True Randomness Possible in Our Determined Universe?
- kelolasin
- · Replies 25 ·
Graduate Typo error or correct wavefunction?
- Thunder_Jet
- · Replies 5 ·
Graduate What is the explanation for the sequence in the Mandl QFT textbook (p.53)?
- intervoxel
- · Replies 4 ·
Graduate Why Is Spin-Orbit Coupling Selective in Phosphorescence Transitions?
- Gavroy
- · Replies 2 ·
Undergrad I am trying to figure out how to refer to two overlapping uncertainty
- golfz
- · Replies 1 ·
Graduate Propagator for matrix fields (based on Srednicki ch80, p490)
- LAHLH
- · Replies 1 ·
Graduate Why quantum mechanics doesn't scale to macro objects
- elassoto
- · Replies 4 ·
Graduate Expectation value of a product of operators
- ryanwilk
- · Replies 3 ·
Graduate How to form a picture in mind of coherent state?
- luxiaolei
- · Replies 2 ·
Graduate Speed of transmission in quantum entanglement
- San K
- · Replies 6 ·
Graduate Fate and Schrodinger's Equation
- cbetanco
- · Replies 4 ·
Graduate Schrodinger's Cat - your opinions
- xDAW
- · Replies 3 ·
Graduate Schrödinger equation in momentum space and number of solutions
- xebtl2
- · Replies 3 ·
Graduate Stress energy tensor in extended standard model
- cbetanco
- · Replies 2 ·
Graduate Why does partial trace over A give the reduced state's expectation value?
- McLaren Rulez
- · Replies 5 ·
Graduate Is there an interference pattern within a non-interference pattern?
- San K
- · Replies 1 ·
Graduate Can the 'shape' of the universe be described at the Plank scale?
- BobCastleman
- · Replies 14 ·
Graduate EPR and Lorentz transformation
- currojimenez
- · Replies 13 ·
Graduate Are super-operators always writable in a basis independent form?
- spocchio
- · Replies 1 ·
Graduate Do virtual particles exist or not?
- byron178
- · Replies 301 ·
Graduate What Does h.c. Signify in Quantum Mechanics Formulas?
- phonon44145
- · Replies 3 ·
Graduate Can Free Particle Have Sharp Energy?
- LarryS
- · Replies 3 ·
Graduate How is spin rotation measured?
- gespex
- · Replies 3 ·
Graduate How to arrive at Bessel function solution to 1D polynomial potential
- Peeter
- · Replies 1 ·
Graduate Why Hermitian instead of self-adjoint?
- kof9595995
- · Replies 20 ·
Graduate Why are identical particles indistinguishable?
- nonequilibrium
- · Replies 21 ·
Graduate Question on observer of double-split experiment
- Lukas_23
- · Replies 15 ·
Graduate Quantum mechanics question regarding jam.
- homnath
- · Replies 1 ·
Graduate Quantum physics in three sentences?
- batmanmg
- · Replies 64 ·
Graduate Quantum communication with extraterrestrials
- rs422a
- · Replies 2 ·
Graduate Uncountable infinite dimensional Hilbert space
- r-rashidi
- · Replies 30 ·
Graduate Quantum Mechanics and General Relativity
- Zerko
- · Replies 2 ·
Graduate Wave Function Collapse: Atom's Non-Stable State
- nouveau_riche
- · Replies 2 ·
High School Does the Principal Quantum Number Refer to the Electron Shell?
- Bashyboy
- · Replies 2 ·
Undergrad How to interpret overlapping uncertainty ranges in results
- golfz
- · Replies 3 ·
Graduate Experimental confirmation of indistinguishability of identical particles?
- Xverse
- · Replies 4 ·
Graduate Fermion-Boson Question: Why Different Positions?
- Black Integra
- · Replies 4 ·
Graduate Does amplitude of light correspond to photon number?
- ComputerPsi
- · Replies 1 ·
Graduate On spinor representations and SL(2,C)
- teddd
- · Replies 9 ·
Graduate What should we use to express free particle in Quantum Mechanics?
- Karmerlo
- · Replies 13 ·
Graduate Can an electron temporarily occupy a non-quantized orbit before decaying?
- Shark 774
- · Replies 3 ·
Graduate Grilling the Double Slit Experiment
- richerrich
- · Replies 17 ·
Graduate Is quantum physics a growing field in the future?
- Violinist
- · Replies 2 ·
Graduate Hawking Radiation's Virtual Particles?
- rollcast
- · Replies 4 ·
Graduate Explanation for the Fountain effect in superfluids
- BobGom
- · Replies 2 ·
Graduate Why saying Quantum Mechanics is pillar of QFT?
- ndung200790
- · Replies 4 ·
Graduate Relativistic correction to quantum mechanical system
- Dilema
- · Replies 2 ·
Graduate Hamiltonian describing energy transfer to bloch Electron from EM field
- dkin
- · Replies 1 ·