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 Is the future set to repeat?
- KaidaAida
- · Replies 1 ·
Undergrad Are optics’ & QM’s double slit experiments fundamentally the same?
- aletheia
- · Replies 1 ·
Double slit experiment with single electrons and no observation
- ynotpup
- · Replies 12 ·
Graduate Measurement and expectation value
- hokhani
- · Replies 6 ·
Graduate Position vs momentum measurement
- hokhani
- · Replies 7 ·
Graduate My questions about QFT and the standard model
- planck999
- · Replies 1 ·
Undergrad Radiation in classical and quantum mechanics
- hokhani
- · Replies 2 ·
Undergrad Discrepancy in uncertainty among various operators
- hokhani
- · Replies 16 ·
Graduate Time evolution of a detected particle
- hokhani
- · Replies 32 ·
Graduate Gerry and Knight solution to single-mode Maxwell equation
- Kekeedme
- · Replies 4 ·
Undergrad Momentum measurement and uncertainty
- hokhani
- · Replies 49 ·
Undergrad Single-photon double-slit with multiple apparatus?
- aletheia
- · Replies 31 ·
Undergrad Particles' Intrinsic Properties in QFT
- LarryS
- · Replies 21 ·
Undergrad How do you apply perturbation theory to a magnetic field Hamiltonian?
- Danielk010
- · Replies 5 ·
High School Schrodinger's Ad-Hoc Definition Of The Wave Function
- bhobba
- · Replies 1 ·
High School Neon bleeding issue with lasers
- Josiah
- · Replies 3 ·
Undergrad Dissecting entanglement
- zonde
- · Replies 6 ·
Graduate Penrose-Dosi Model
- Ssnow
- · Replies 8 ·
High School Reducing loss of energy for Lasers
- Josiah
- · Replies 14 ·
Undergrad Entanglement might be the result of an underlying law?
- wavering
- · Replies 33 ·
Undergrad Uncertainty and particle in a box
- hokhani
- · Replies 6 ·
Undergrad Can reflecting a laser back on itself increase its power?
- Josiah
- · Replies 19 ·
Undergrad Photons and free quantum particles
- hokhani
- · Replies 5 ·
Undergrad How can light be a wave and particle at the same time?
- gronk
- · Replies 12 ·
High School Does entanglement synchronization change with distance in general relativity?
- SchrodingersRat
- · Replies 15 ·
Undergrad Application of the Schrödinger Equation in Modeling the Hydrogen Atom
- Sandra Jane
- · Replies 5 ·
Undergrad Does causality become relative in spacelike-separated entanglement measurements?
- Loptyur
- · Replies 6 ·
High School Electron absorbs photon, but what happens to the photon?
- paddyc
- · Replies 20 ·
Graduate α as angular rigidity of the electron: references?
- Roberto Pavani
- · Replies 8 ·
Graduate Magnetic monopole vs (g-2)
- Roberto Pavani
- · Replies 3 ·
High School On electron orbitals
- BadgerBadger92
- · Replies 4 ·
Undergrad What empirical observation supports the axiom of continuous spacetime?
- swissgirl1999 Refer
- · Replies 23 ·
Undergrad Questions: Multi-particle entanglement, speed of light, electron orbitals
- MDH72
- · Replies 5 ·
Graduate Gauge conditions in interaction theory
- Haorong Wu
- · Replies 6 ·
Graduate Relationship between superconductors and gravity
- Josiah
- · Replies 4 ·
Graduate Six Textbook Mistakes in Quantum Field Theory
- Muu9
- · Replies 6 ·
Undergrad Particle field strength and sensitivity
- snorkack
- · Replies 2 ·
High School Seemingly odd quantum tunneling
- DanteKennedy
- · Replies 33 ·
High School Can entangled photons be treated as single spatially extended objects?
- Aloiz Burher
- · Replies 8 ·
Graduate Gravitons
- Josiah
- · Replies 2 ·
Undergrad What effect do gravitons have on electrons?
- Josiah
- · Replies 19 ·
High School Does quantum collapse research support collapse as a physical mechanism?
- ojitojuntos
- · Replies 6 ·
Undergrad Do elliptical patterns connect quark behavior to orbital mechanics?
- mayflowers
- · Replies 4 ·
Undergrad Why is a Gaussian function used to represent a wave packet?
- LarryS
- · Replies 4 ·
High School Gravitons/Gravity passing through objects
- Josiah
- · Replies 11 ·
Undergrad Ramsauer and Townsend effect: history and explanation
- haushofer
- · Replies 1 ·
Undergrad Prof Mike Wiest's proposed link between quantum and consciousness
- nomadreid
- · Replies 19 ·
Undergrad ##r-##independent angular momentum in quantum mechanics
- hokhani
- · Replies 16 ·
Undergrad How do you derive $x = ihbar d/dp$? Why does this equation hold true?
- Danielk010
- · Replies 2 ·
High School Needs explanation for P in quantum tunneling formula
- DanteKennedy
- · Replies 14 ·
High School Trivial quantum entanglement question (from a rookie)
- DanteKennedy
- · Replies 1 ·
Graduate Why does QM split into two evolution types?
- Thor Jackson
- · Replies 7 ·
Graduate Super fluids and superconductors at the molecular level
- Josiah
- · Replies 1 ·
High School Classic question regarding the nature of quantum tunneling
- DanteKennedy
- · Replies 14 ·
High School Knowledge and information in the physical world
- geordief
- · Replies 16 ·
Undergrad Proving momentum expectation value shifts by p₀ under phase transformation
- Danielk010
- · Replies 4 ·
Undergrad The equivalent concept of phase change in classical mechanics
- hokhani
- · Replies 9 ·
Graduate Quantum properties and Van Hove singularty
- Shugart
- · Replies 5 ·
Undergrad How do bar detectors work in gravitational wave detectors?
- Josiah
- · Replies 7 ·
High School Photoelectric and summation of photons energy
- hokhani
- · Replies 8 ·
Undergrad 2D rotation and angular momentum uncertainty
- hokhani
- · Replies 5 ·
Undergrad Scattering Theory: Difference between use of scattering amplitude and Born approximation?
- Shahzad Raza
- · Replies 2 ·
Graduate Exact symmetry, quantum states, and symmetric dynamics
- jj90
- · Replies 8 ·
Undergrad Necessary conditions for the uncertainty principle
- andresB
- · Replies 7 ·
Undergrad Why aren't photons from a laser considered entangled?
- LarryS
- · Replies 4 ·
High School Interesting paper on QM in Scientific American
- bhobba
- · Replies 12 ·
Graduate Avalanche photon detectors
- Hop-AC8NS
- · Replies 0 ·
Graduate Heisenberg's Re-interpretation of Bohr-Sommerfeld Quantization Condition in his 1925 'Umdeutung' paper (p12)
- Rohin
- · Replies 4 ·
Graduate Consistency of Relativistic QM
- bhobba
- · Replies 12 ·
High School Can gravitons be detected?
- Josiah
- · Replies 42 ·
Graduate Some derivation in QFT in Curved SpaceTime by Birrell and Davies
- mad mathematician
- · Replies 2 ·
Undergrad The imaginary part of the wave function
- LarryS
- · Replies 6 ·
Graduate Wavefunction in the context of quantum physics
- cianfa72
- · Replies 16 ·
Graduate Is the 2-qubit singlet state invariant under bilateral projections?
- QuantumExplorer
- · Replies 8 ·
Undergrad Why do detected electrons still show diffraction patterns at slits?
- PhysicsIsReallyFun
- · Replies 10 ·
Undergrad Which-Path from Global Momentum Measurement in Double Slit
- wnvl2
- · Replies 3 ·
Graduate Two equivalent statements of time reversal symmetric Hamiltonian
- hokhani
- · Replies 13 ·
Insights Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect
- Greg Bernhardt
- · Replies 22 ·
Undergrad Hooke's law: Constructing a force operator for electron orbitals?
- Vectronix
- · Replies 1 ·
Undergrad What forces a magnet's field to track the rotation of the magnet?
- Swamp Thing
- · Replies 1 ·
Undergrad Klein-Gordon equation in the nonrelativistic limit
- George Keeling
- · Replies 3 ·
Undergrad Antilinear Operators
- hokhani
- · Replies 11 ·
Undergrad Entanglement swapping in the context of Indivisible Stochastic Process
- JonAce73
- · Replies 2 ·
Graduate Could there be a "Communication Theorem" instead of a "No-Communication Theorem" in quantum entanglement?
- Quantum_Kevin
- · Replies 4 ·
Undergrad HUP in condensates?
- LarryS
- · Replies 1 ·
Graduate Problem while simulating spin polarized interacting SSH model
- Dhiman9163
- · Replies 1 ·
High School Is it correct to state that all measurements count photons?
- Chiara
- · Replies 11 ·
High School Mass & energy increments a la e = mc^2
- Swamp Thing
- · Replies 9 ·
Undergrad Angular Momentum Vector and Its Magnitude
- hokhani
- · Replies 14 ·
Undergrad Antiproton and positron annihilation
- Sasho Andonov
- · Replies 2 ·
Undergrad Can a delayed choice apparatus prevent observation of entangled photons?
- cgsanderson
- · Replies 6 ·
Undergrad Why do non-colinear Lorentz boosts imply particles must have spin?
- LarryS
- · Replies 4 ·
Undergrad Can (ordo) Fermions convert to Bosons?
- RobbyQ
- · Replies 5 ·
Undergrad Why do different inner product notations seem inconsistent?
- nomadreid
- · Replies 6 ·
Undergrad The Power of QM and QFT
- bhobba
- · Replies 4 ·
Undergrad Importance of Hanbury Brown and Twiss experiment
- qnach
- · Replies 13 ·
Graduate Is It Known For Sure Infinites In QFT Are Caused Using a Continuum?
- bhobba
- · Replies 3 ·
Graduate Lesser Green's function
- rbphysics
- · Replies 1 ·
Undergrad What does the product part of Laughlin wave function mean?
- George Keeling
- · Replies 1 ·
Undergrad Does a qubit break interference in the double slit experiment?
- pines-demon
- · Replies 10 ·