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 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 Question about measurement and unitary dynamics
- 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 Confused by Feynman sum over histories
- 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 Normalization of a wavefunction
- 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 Difference and benefits of qubits compared to regular 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 The science behind the conversion of particles to other particles
- 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 Explaining Electromagnetic Fields: Mass and Distance
- 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 Question About Bohr's Quantified Shell 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 Explaining Electron Emission and Photon Interactions in Quantum Mechanics
- fluidistic
- · Replies 2 ·
Graduate Webpage title: Does Real Quantum Randomness Play a Role in Evolution?
- DrZoidberg
- · Replies 1 ·
Graduate Maxwell's equations and Quantum Physics
- Gavroy
- · Replies 3 ·
Graduate Transverse Susceptibility, and doubts about retarded/advanced Green's Functions
- maverick280857
- · Replies 9 ·
Graduate Interference of electron waves in an atomic orbital
- Narges
- · Replies 1 ·
Graduate Is Bohmian Mechanics Incompatible with Free Will and the Creation of Art?
- atyy
- · Replies 34 ·
Graduate Eigenvalues and ground state eigenfunction of a weird Hamiltonian
- Thunder_Jet
- · Replies 5 ·
High School Does Quartz vibrate without applying voltage?
- oem7110
- · Replies 2 ·
Graduate How do particles and waves interact in the quantum world?
- madhatter106
- · Replies 7 ·
Graduate Does Deleting Which Path Data Restore Quantum Interference?
- engmex
- · Replies 22 ·
Graduate Quantum theory, consciousness and existence
- Viv C
- · Replies 12 ·
Undergrad Electron centripetal acceleration
- wasi-uz-zaman
- · Replies 4 ·
Graduate Unified field theory impossible?
- mazz
- · Replies 2 ·
Graduate Energy spectrum from a hamiltonian
- Fixxxer125
- · Replies 1 ·
Graduate Why doesn't wave function collapse contradict Schrodinger equation?
- andrewkirk
- · Replies 9 ·
Graduate Schrödinger equation for particle on a ring in a magnetic field
- Gavroy
- · Replies 1 ·
Graduate Angular dependence in QM: Why is it present in the hydrogen atom?
- Repetit
- · Replies 5 ·
Graduate Faster than light in Quantum mechanics?
- stgdf01
- · Replies 12 ·
Graduate Probability of hand through a wall vs an electron
- 54stickers
- · Replies 2 ·
Graduate Does anyone have information on how exactly a atomic clock works?
- IFNT
- · Replies 5 ·
Undergrad When do I use these equations for calculating linewidths?
- Gavroy
- · Replies 1 ·