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 Hamiltonian describing energy transfer to bloch Electron from EM field
- dkin
- · Replies 1 ·
Graduate Electron spin, magnetic field, and measurement uncertainty
- Gavroy
- · Replies 8 ·
Graduate Landau quantization of cyclotron orbit
- xaratustra
- · Replies 2 ·
Graduate Can you make a definition of velocity in QM ?
- gurhkn
- · Replies 17 ·
Graduate Why only energy eigenstates in equilibrium statistical mechanics
- nonequilibrium
- · Replies 12 ·
Graduate Uncertainty principle, virtual particle pairs and energy
- Darkmisc
- · Replies 3 ·
Graduate Why do wave functions make quantum computers faster than digital logic?
- AustinLee
- · Replies 1 ·
Undergrad Who First Plotted the Spectral Radiancy Curve and When?
- i_island0
- · Replies 1 ·
Graduate Probability waves - instant infinite extent?
- ihatelolcats
- · Replies 3 ·
Graduate Eigenvaules and quantum numbers
- khemist
- · Replies 8 ·
Graduate Light polarization vs photons spin
- maxverywell
- · Replies 20 ·
Graduate SU(N) symmetry in harmonic oscillator
- tom.stoer
- · Replies 3 ·
Graduate Question related to quantization of the magnetic field
- fluidistic
- · Replies 1 ·
Graduate I need just ONE analytic solution to the time-dependent Schrodinger Equation.
- IronHamster
- · Replies 1 ·
Graduate Why should Hawking radiation decrease a black hole's size?
- nhmllr
- · Replies 2 ·
Graduate Quantum efficiency as a function of wavelength
- gnurf
- · Replies 1 ·
Graduate Schrödinger's cat contradiction
- ronenfe
- · Replies 18 ·
Graduate How to Normalize and Integrate a Wave Function in the Range 0 to L?
- theblender
- · Replies 4 ·
Graduate Chrial gauge theories and anomalies(Srednicki ch75-76)
- LAHLH
- · Replies 6 ·
Graduate Box normalization of plane wave
- pisto
- · Replies 12 ·
Graduate Does wave-function collapse emerge from tracing out the observer in composite systems?
- S.Daedalus
- · Replies 1 ·
Graduate Virtual particles colliding with other virtual particles
- josephwouk
- · Replies 7 ·
Graduate What is the Principle of Cluster Decomposition in Quantum Field Theory?
- fermi
- · Replies 5 ·
Graduate Does path integral formalism deny that past events actually occurred?
- junglebeast
- · Replies 5 ·
Graduate Does Ward Identity in QCD has origin of U(1) or SU(3) symmetry?
- ndung200790
- · Replies 1 ·
Undergrad Electron energy shells-where do they come from
- rrosenthal
- · Replies 2 ·
Graduate Commutation of Hamiltonian and time evolution operator
- bikashkanungo
- · Replies 6 ·
Graduate Do particles have spatial extent or are they point-like?
- jamesb99
- · Replies 18 ·
Graduate Finding normalization constant for ψ(x,t) = [b² - (x - vt)²]⁻¹
- dapias09
- · Replies 4 ·
Graduate Is Quantum Physics Non-Locality According to Einstein, Podolski, and Rosen?
- 4everlonging
- · Replies 4 ·
Graduate Bohm's Hidden Variable Model: Distinguishing from Einstein's Vision
- 4everlonging
- · Replies 3 ·
Graduate Is there evidence for a local hidden variable model in quantum physics?
- 4everlonging
- · Replies 1 ·
Graduate I know that renormalisation has to do with getting rid of unwanted
- Endervhar
- · Replies 8 ·
Graduate Relaxation Rate for Single Qubit Decoherence Time
- mehdi86
- · Replies 1 ·
High School How do qubits differ from classical bits?
- fisico30
- · Replies 3 ·
Graduate Trying to understand Heisenberg Uncertainty Principle in a physical sense
- Runner 1
- · Replies 49 ·
Graduate Choas and the bridge from Classical to Quantum physics
- pergradus
- · Replies 2 ·
Graduate Can someone explain what a propagator is and does?
- zheng89120
- · Replies 2 ·
Graduate How do you visualize the spin of electron in your head?
- orienst
- · Replies 14 ·
Graduate Quantum Mechanics: What is Quanta?
- narrator
- · Replies 2 ·
Graduate Why is there a forbidden energy gap in solid state electronics?
- sachin123
- · Replies 6 ·
Graduate 2nd order perturbation calculation for a system involving spins
- Thunder_Jet
- · Replies 1 ·
Graduate Why is it path integral formalism being a ''quantization'' procedure?
- ndung200790
- · Replies 6 ·
Graduate Virtual Photons over Large Distances
- Vorde
- · Replies 7 ·
Graduate Understanding Interference Between Spin States
- metroplex021
- · Replies 3 ·
Graduate Is there a limit to information storage on the surface of a black hole?
- binaryverse
- · Replies 4 ·
Graduate Loophole-free quantum steering
- DrChinese
- · Replies 4 ·
Graduate Communication via Quantum Entanglement
- iCoop
- · Replies 1 ·
Graduate How do electron-positron collisions convert particles to photons?
- Runner 1
- · Replies 8 ·
Graduate Observer independent collapses?
- reynolds2
- · Replies 18 ·
Graduate Is Feynman's QFT Unitarity Issue Resolved?
- PatrickPowers
- · Replies 1 ·
Graduate Bohr Model and wave-particle duality
- p834
- · Replies 1 ·
Undergrad Do electromagnetic fields from magnets carry mass?
- Tim Edilation
- · Replies 2 ·
Graduate Quantum Information and Brain neurons
- abbeynewton
- · Replies 10 ·
Graduate Unitary Transformation: Proving ¯UU = 1 in Dirac's Text
- bikashkanungo
- · Replies 5 ·
Undergrad Why doesn't the electron collapse into the nucleus in Bohr's model?
- octagon
- · Replies 3 ·
Graduate Matrix elements of the secular determinant for trial functions?
- MontavonM
- · Replies 1 ·
Graduate Is the Expectation Value of Momentum for a Superposition of Sine Functions Zero?
- posion117
- · Replies 4 ·
Graduate Energy time uncertainty principle
- Muneer QAU
- · Replies 9 ·
Graduate Do the eigenfunctions for the position operator form an orthogonal set?
- Runner 1
- · Replies 3 ·
Graduate What Are the Consequences of Breaking U(1) in Electroweak Theory?
- jacopo23
- · Replies 12 ·
Graduate I must be discomprehending the Rutherford scattering cross section.
- Dilettante
- · Replies 6 ·
Graduate Did John Wheeler Really Believe Consciousness Causes Collapse?
- reynolds2
- · Replies 1 ·
Graduate Quantum computers and modelling a quantum computer on a classical computer
- Georgepowell
- · Replies 13 ·
Undergrad How do electrons become excited in an atom
- Strafespar
- · Replies 2 ·
Graduate Lack of quantum effects at higher temperatures
- trelek2
- · Replies 1 ·
Graduate What if a particle had infinite mass?
- trelek2
- · Replies 2 ·
Graduate A thought on Quantum mechanics
- Strafespar
- · Replies 3 ·
Graduate Ward-Takahashi identities from symmetry
- nlieb
- · Replies 1 ·
High School Why Do Square Holes in Bamboo Slats Create Round Light Patterns?
- PatrickPowers
- · Replies 4 ·
Graduate Symmetric and Antisymmetric WF
- Cosmossos
- · Replies 1 ·
Graduate A question for Sakurai's advanced qm
- kof9595995
- · Replies 7 ·
Graduate MSbar Renormalisation + Gamma Functions
- Daschm
- · Replies 2 ·
Graduate Schroedinger equation and random walks
- PatrickPowers
- · Replies 5 ·
Graduate Understand Grover's Algorithm: Classical Problem vs Quantum Solution
- paweld
- · Replies 7 ·
Large Scale Uncertainty Principle
- chrisdapos
- · Replies 3 ·
Graduate The physical meaning of a phase factor
- maxverywell
- · Replies 7 ·
Graduate Quantum systems without a classical limit
- wdlang
- · Replies 3 ·
Graduate Deutsch's algorithm vs classical algorithm
- maxverywell
- · Replies 1 ·
Graduate Are all eigenstates of observables orthogonal?
- AlonsoMcLaren
- · Replies 1 ·
Undergrad Photoelectric effect minimum frequency
- Delta2
- · Replies 2 ·
Graduate Non-invariance under 2-Pi rotations?
- csmcmillion
- · Replies 4 ·
Graduate Translational movement of a signal atom in a vaccuum?
- AtrusReNavah
- · Replies 13 ·
Graduate Newbie Schrodinger equation question
- SteveM19
- · Replies 3 ·
Graduate Does Quantum Mechanics Challenge the Conservation of Matter Law?
- bobsmith76
- · Replies 1 ·
Graduate Is it Information or Interaction that Observes ?
- AtrusReNavah
- · Replies 9 ·
Graduate What does it mean if something Transforms Covariantly ? (Quantum Field Theory)
- Elwin.Martin
- · Replies 1 ·
Graduate Can Multiple Electrons in a Double Slit System Interfere With Each Other?
- PatrickPowers
- · Replies 1 ·
Graduate Why do q's form a complete commuting set of observables?
- bikashkanungo
- · Replies 1 ·
Graduate What is Pauli's Exclusion Principle and How Does It Apply to Fermions?
- Gravitonion
- · Replies 4 ·
Do your thought has vibration?
- oem7110
- · Replies 2 ·
Graduate Some system can be normalized, some can not
- Black Integra
- · Replies 2 ·
Undergrad General operational theory of fluorescence is
- OnePound
- · Replies 1 ·
Graduate How does quantum mechanics describe photon emission from excited atoms?
- fluidistic
- · Replies 2 ·
Graduate Does quantum randomness need to play a role in evolution?
- DrZoidberg
- · Replies 1 ·
Graduate Maxwell's equations and Quantum Physics
- Gavroy
- · Replies 3 ·
Graduate Transverse susceptibility in ladder approximation with retarded/advanced Green's functions
- maverick280857
- · Replies 9 ·
Graduate Interference of electron waves in an atomic orbital
- Narges
- · Replies 1 ·
Graduate Zurek's envariance derivation of Born rule and Bohmian mechanics
- atyy
- · Replies 34 ·
Graduate Eigenvalues and ground state eigenfunction of a weird Hamiltonian
- Thunder_Jet
- · Replies 5 ·