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.
Threads
Graduate My questions about QFT and the standard model
- planck999
- · Replies 1 ·
Undergrad Radiation in classical and quantum mechanics
- hokhani
- · Replies 2 ·
Graduate Position vs momentum measurement
- hokhani
- · Replies 6 ·
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 ·
Double slit experiment with single electrons and no observation
- ynotpup
- · Replies 10 ·
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 Elementary question about comparing notations of inner product
- 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 ·
Undergrad Schrödinger equation and classical wave equation
- Meden Agan
- · Replies 39 ·
High School New idea about wave-particle duality - looking for feedback/criticism
- fbas
- · Replies 1 ·
Undergrad Is Maxwell's electromagnetism an effective (field) theory?
- Husserliana97
- · Replies 3 ·