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.
Sub-forums
Threads
Undergrad How does Bell make this step in his proof?
- N88
- · Replies 45 ·
High School Collision of identical fermions
- jartsa
- · Replies 18 ·
Graduate What is the meaning of this equation?
- josus10
- · Replies 1 ·
High School Does dark matter have stronger wave-like properties due to its low mass?
- fanieh
- · Replies 13 ·
Undergrad The typical and the exceptional in physics
- A. Neumaier
- · Replies 445 ·
Graduate If light is quantized, why are EM spectrum and Blackbody spectrum continuous?
- annms
- · Replies 17 ·
Undergrad If electrons can deflect photons, doesn't that make electrons waves?
- Vitani11
- · Replies 24 ·
Undergrad QFT for the Gifted Amateur Question (2)
- 43arcsec
- · Replies 11 ·
Undergrad Does the wavefunction evolve only to the future?
- Gerinski
- · Replies 7 ·
High School Is wave particle duality really wrong?
- fanieh
- · Replies 26 ·
Undergrad Are there other types of operators that can produce real eigenvalues?
- TheCanadian
- · Replies 13 ·
High School Uncertain position and momentum -- A property of particles?
- Prem1998
- · Replies 70 ·
Undergrad Why do atomic orbitals and multipoles have similar geometry?
- Steven Hanna
- · Replies 6 ·
High School How does Quantum Teleportation Work?
- Anderson Yuan
- · Replies 9 ·
High School Is Consciousness Influencing Branch Selection in Quantum Decoherence?
- fanieh
- · Replies 24 ·
Graduate Uncoupled excitations in frequency space for atomic chains
- anklimekruk
- · Replies 38 ·
Undergrad Are spin eigenvectors | + > and | - > opposite in direction?
- dyn
- · Replies 24 ·
Graduate Mathematical Format of Lagrangian vs Symmetries
- LarryS
- · Replies 6 ·
High School How do I calculate electron acceleration by gravitational waves
- AAB1994
- · Replies 12 ·
Undergrad What equation is this and what does it describe?
- resurgance2001
- · Replies 2 ·
Graduate Can we derive quantification of energy mathematically?
- svletana
- · Replies 7 ·
High School Virtual Particles; Making the Universe an Open System?
- Thomas Eaton
- · Replies 4 ·
Undergrad Plane wave solution to Dirac equation
- Josh1079
- · Replies 2 ·
Undergrad Schroedinger Equation from Variational Principle
- Sturk200
- · Replies 1 ·
Undergrad Scientific American Entanglement Movie
- Zafa Pi
- · Replies 4 ·
High School Why do quantum effects arise due to microscopic size?
- Prem1998
- · Replies 8 ·
Graduate Experimental values for screening constants? (Slater rules)
- jarekduda
- · Replies 1 ·
High School Help with relationships in equations ΔX/L = λ/d?
- totomyl
- · Replies 3 ·
Undergrad Are we in a simulation and quantum tunneling?
- ChrisB
- · Replies 13 ·
Undergrad Can we find a quantum analogue of the Bertrand paradox?
- jk22
- · Replies 5 ·
High School Why the square of the wave function equals probability?
- Prem1998
- · Replies 7 ·
Undergrad Why diagonalize perturbation only in degenerate subspace
- bananabandana
- · Replies 1 ·
High School How and why do quantum fields interact with each other?
- Daniel Bolstad
- · Replies 9 ·
Undergrad Eigenstates of two Coupled Harmonic Oscillator
- Esquer
- · Replies 5 ·
High School Projection Operator: What Math Operation Does it Represent?
- Kevin McHugh
- · Replies 7 ·
Undergrad Is dψ/dx zero when x is infinite in QM?
- Tspirit
- · Replies 43 ·
Undergrad Schrödinger's Equation Infinite Potential Well
- Bullington
- · Replies 5 ·
High School How is the Hydrogen Atom's Wave Function Separable?
- Titan97
- · Replies 9 ·
High School All the Universe belong to Quantum Mechanics?
- newb345
- · Replies 3 ·
Undergrad QFT for the Gifted Amateur Question?
- 43arcsec
- · Replies 6 ·
Undergrad Planck's constant and quantization of energy
- redtree
- · Replies 3 ·
Graduate Does spacetime lose its determinism in third dimension?
- The Count
- · Replies 1 ·
Undergrad A two-fold quantum delayed-choice experiment
- TJung
- · Replies 3 ·
Undergrad Classical Mechanics v Quantum Mechanics
- INAM KHAN
- · Replies 2 ·
Undergrad What causes Heisenberg's uncertainty principle?
- victorhugo
- · Replies 13 ·
Undergrad Difference between virtual and real photons in electromagnetism and gravity
- Albertgauss
- · Replies 1 ·
Undergrad Are hidden variables in Bell experiments state-dependent or detector-dependent?
- Jilang
- · Replies 12 ·
High School About the delayed choice quantum eraser experiment
- Srullic
- · Replies 6 ·
High School Double slit simulator with polarizers before each slit
- 69911e
- · Replies 1 ·
High School What does quantum spin actually define?
- saboo_tage
- · Replies 50 ·
Undergrad Debunk these news stories (QM Radar)
- .Scott
- · Replies 6 ·
Graduate Confusion about Derivation of Vacuum Rabi Rate
- Twigg
- · Replies 1 ·
High School Random transfer in entanglement
- fanieh
- · Replies 19 ·
High School Could a clock use Planck time as its fundamental unit?
- AndyWeb
- · Replies 12 ·
Undergrad CFD - Counterfactual Definiteness
- Eye_in_the_Sky
- · Replies 157 ·
Undergrad What Is The Nature Of Absorption Randomity?
- Chris Frisella
- · Replies 6 ·
High School Quantum superposition of Coulomb potential
- zonde
- · Replies 7 ·
Undergrad Harmonic Oscillator in 3D, different values on x, y and z
- Ofinns
- · Replies 12 ·
High School Can Gravitons Interact with Magnetic Fields and Explain Light Bending?
- kent davidge
- · Replies 9 ·
High School The electron field as values of what quantity?
- Green dwarf
- · Replies 8 ·
Undergrad Strong force and superposition
- Bill Myk
- · Replies 1 ·
Undergrad Eigenvalues, eigenvectors and the expansion theorem
- dyn
- · Replies 13 ·
High School Uncertainty Principle - uncertainty in mass.
- hankaaron
- · Replies 2 ·
High School Does a photon have spatial dimensions as a wave or particle?
- calinvass
- · Replies 12 ·
Undergrad When is a given state an eigenstate of a given operator?
- Kyle.Nemeth
- · Replies 4 ·
Undergrad QM has never made a prediction contradicted by experiment
- windy miller
- · Replies 18 ·
High School Why does China's quantum science satellite conduct experiments in space?
- houlahound
- · Replies 3 ·
Undergrad Moment and the Larmor precession
- enigmation
- · Replies 3 ·
Undergrad Finite difference Hamiltonian
- aaaa202
- · Replies 1 ·
Undergrad Quantum mechanics getting position operator from momentum
- mertcan
- · Replies 4 ·
Graduate Complex scalar field - commutation relations
- spaghetti3451
- · Replies 13 ·
Graduate Relevant interactions in quantum field theory
- spaghetti3451
- · Replies 1 ·
Undergrad Simple physical example for addition of angular momentum?
- andresB
- · Replies 5 ·
High School Position of a particle immediately after a measurement
- Titan97
- · Replies 20 ·
Undergrad Photon Interval vs Areal Density for Changing Intensity
- greswd
- · Replies 13 ·
Graduate Stark effect - theory vs experiment?
- jarekduda
- · Replies 3 ·
Undergrad What potential is used to solve the Schrödinger equation for electrons in an atom?
- Isaac0427
- · Replies 52 ·
Undergrad Should the position basis be quantized?
- nashed
- · Replies 11 ·
Undergrad What lead N.Bohr to come up with his postulates?
- victorhugo
- · Replies 1 ·
Undergrad What Is the Origin of the Singlet State in Quantum Mechanics?
- Physgeek64
- · Replies 6 ·
Graduate What physics would look like if QM had not been invented?
- jarekduda
- · Replies 3 ·
Undergrad About magnetic momentum in quantum mechanics
- KFC
- · Replies 1 ·
Undergrad Why is the momentum operator Hermitian?
- sams
- · Replies 11 ·
Graduate States in relativistic quantum field theory
- A. Neumaier
- · Replies 8 ·
Undergrad Does the +/- 1 term in bosonic and fermionic statistics matter
- KFC
- · Replies 2 ·
Insights Struggles with the Continuum - Part 5 - Comments
- john baez
- · Replies 10 ·
Undergrad Why the energy inversely propotional to n^2 in Bohr model
- KFC
- · Replies 5 ·
Undergrad About classical and quantum-mechanical statistics
- KFC
- · Replies 1 ·
Undergrad Is impact parameter more dependent on the scattering center or incoming wave?
- Kevin McHugh
- · Replies 2 ·
Graduate Given decoherence, do we still need random quantum jumps and
- Giulio Prisco
- · Replies 15 ·
Undergrad What's so strange about entangled particles?
- kent davidge
- · Replies 9 ·
Undergrad Why Not Mess with the Potential?
- Sturk200
- · Replies 16 ·
Undergrad Ontology of wavefunction vs. ontology of electric field
- greypilgrim
- · Replies 8 ·
High School Classical EM Wave: Can Model be Proved Wrong?
- calinvass
- · Replies 3 ·
Undergrad History of the modeling of light
- A. Neumaier
- · Replies 4 ·
Undergrad Where Does Larmor Precession Occur?
- Twigg
- · Replies 6 ·
Graduate What is the role of averaging holonomies in gauge invariance within GR?
- naima
- · Replies 4 ·
Undergrad Limiting behavior of quantum elastic collision
- jcap
- · Replies 1 ·
Undergrad Is the state observer dependent
- Jilang
- · Replies 6 ·
Undergrad State space of a standing wave?
- pliep2000
- · Replies 3 ·