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
Undergrad "Counterfactual definiteness" vs. "free will"
- greypilgrim
- · Replies 102 ·
Undergrad Numerically solving Time-independent Schrödinger eqn. using Shooting algorithm
- Wrichik Basu
- · Replies 20 ·
Graduate Spin-One Klein Gordon Equation
- Jogging-Joe
- · Replies 3 ·
Undergrad How to explain vacuum fluctuations to high school students
- raracon
- · Replies 1 ·
Graduate Fermilab's muon g-2 experiment and hints of new physics
- physicoed
- · Replies 2 ·
Undergrad Uncertainty principle##\Delta H\Delta Q##, where Q is time-independent
- Foracle
- · Replies 1 ·
Undergrad It seems that the eigenvalue problem rules out the possibility of E=0?
- BHL 20
- · Replies 5 ·
High School Entangled protons in a uniform magnetic field?
- docnet
- · Replies 20 ·
Graduate Bell's theorem: Local realism v. counterfactual determinism
- zvi
- · Replies 2 ·
Undergrad Is quantum mechanics imply nature is deterministic or probabilistic?
- Pipsqueakalchemist
- · Replies 8 ·
Undergrad Two Ways of Calculating the Solution to the Infinite Square Well?
- JohnH
- · Replies 28 ·
Graduate Why are we allowed to use the trace cyclicity here?
- Heidi
- · Replies 2 ·
Graduate What problem arises from the second time derivative in the Klein-Gordon equation?
- koustav
- · Replies 12 ·
Undergrad Einstein-Bohr "photon box" debate and general relativity
- Giulio Prisco
- · Replies 20 ·
Undergrad Schrodinger Equation as Flow Equation
- lagrangman
- · Replies 2 ·
High School Which book is best for learning about quantum entanglement?
- edukso
- · Replies 3 ·
Undergrad Is the Wavefunction a Contravariant Component?
- JohnH
- · Replies 47 ·
Graduate Quantum superposition: Is a problem of space-time worldview?
- sergiokapone
- · Replies 1 ·
Undergrad How Does Quantum Negativity Vary with Partial Transposes in Bipartite Systems?
- Jufa
- · Replies 1 ·
Undergrad Why could magnetic monopoles exist?
- Ahsan Khan
- · Replies 12 ·
Graduate Interaction between neutrons and nuclei during scattering
- Mayan Fung
- · Replies 1 ·
High School The average value of S operator
- Viona
- · Replies 3 ·
Graduate Feynman diagram for bound particle output
- JonAce73
- · Replies 1 ·
Undergrad "Black holes can only get bigger" - huh?
- Terrr
- · Replies 61 ·
Undergrad Can downconverting an entangled photon create three-particle entanglement?
- entropy1
- · Replies 2 ·
Undergrad How does blocking the longer path affect the double slit interference pattern?
- deadbeef
- · Replies 3 ·
Undergrad How can there be an Uncertain Momentum at a Specific Energy?
- BHL 20
- · Replies 13 ·
Undergrad A strange definition for Hermitian operator
- struggling_student
- · Replies 3 ·
Undergrad Does a blind man's machine create superposition in colored apples?
- KDPhysics
- · Replies 25 ·
Undergrad General solution of the hydrogen atom Schrödinger equation
- Oliver321
- · Replies 9 ·
Graduate Experiments probing the macroscopic limits of QM
- Auto-Didact
- · Replies 45 ·
High School Virtual Particles Momentum Transfer
- e2m2a
- · Replies 27 ·
High School Do entangled particles always react in an anti-symmetric way?
- Jerome71
- · Replies 6 ·
Graduate Heisenberg lens and probabilities
- Heidi
- · Replies 9 ·
Graduate Is the freedom-of-choice loophole valid in quantum entanglement experiments?
- little1406
- · Replies 2 ·
Undergrad What is the role of the D term in the Spin-1 XY model's Hamiltonian?
- chaksome
- · Replies 1 ·
Undergrad Degenerate eigenvalue λ=1 giving two-parameter family of eigenstates
- struggling_student
- · Replies 2 ·
High School Electron charge and spin creating a magnetic field?
- JuicyFruit123
- · Replies 12 ·
Graduate State in the infinite potential well
- LagrangeEuler
- · Replies 7 ·
Undergrad Complex conjugate and time reversal operator
- dyn
- · Replies 12 ·
Graduate Request for a review of a paper on consciousness creating reality.
- Emmanuel Pil
- · Replies 4 ·
Undergrad Improper density matrix with negative eigenvalues
- Haorong Wu
- · Replies 27 ·
Undergrad Double slit - properties of slit?
- Homestar1
- · Replies 45 ·
Undergrad [video] Simulating a delayed choice quantum eraser in an online drag-d
- Strilanc
- · Replies 0 ·
Graduate How to systematically find the symmetry operator given a Hamiltonian?
- quantumbitting
- · Replies 1 ·
Undergrad Dimensions of P and ##\omega##
- AHSAN MUJTABA
- · Replies 6 ·
Undergrad How to Show 25% of Cavity Radiant Energy Between 0 and Peak Wavelength?
- Alexander de Souza
- · Replies 1 ·
Undergrad Large scale entanglement experiment
- T C
- · Replies 5 ·
Undergrad Why is entanglement spooky if separated particles have correlated spins from creation?
- Orenshved
- · Replies 8 ·
Graduate Bell inequalities demonstration
- microsansfil
- · Replies 1 ·
High School Gravitational force between matter and antimatter
- Delta2
- · Replies 7 ·
Undergrad What is the meaning of superposition of momentum in coherent states?
- physicsradio
- · Replies 1 ·
High School Time travel in the quantum world
- Arceus
- · Replies 10 ·
Undergrad How quickly do electrons jump orbitals?
- Grasshopper
- · Replies 38 ·
High School Do nested observer perspectives create infinite realities?
- porton
- · Replies 1 ·
Undergrad Are electrons universal problem solvers?
- porton
- · Replies 4 ·
High School I am looking for a paper written by Massimo Blasone
- Heidi
- · Replies 4 ·
Graduate Tensor product in Cartesian coordinates
- LagrangeEuler
- · Replies 4 ·
Graduate Ising lattice seen by an inertial observer
- Heidi
- · Replies 10 ·
Undergrad How Dark could Dark Matter get?
- .Scott
- · Replies 21 ·
Graduate How can we show that the annihilation operators satisfy the given equation?
- etotheipi
- · Replies 10 ·
Graduate Wick's rotation on a complex vector space
- Heidi
- · Replies 3 ·
High School Is the Momentum Operator Hermitian? A Proof
- hokhani
- · Replies 7 ·
Graduate Understanding an Approximation in Statistical Physics
- Arman777
- · Replies 6 ·
High School How do you tell when particles are or aren't entangled?
- louthinator
- · Replies 8 ·
Graduate Do we really need the Hilbert space for Quantum Mechanics?
- jonjacson
- · Replies 6 ·
Undergrad Larmor precession of an electron in a magnetic field?
- docnet
- · Replies 1 ·
Graduate Why is Quantum Field Theory Local?
- LarryS
- · Replies 182 ·
Undergrad Why the linear combination of eigenfunctions is not a solution of the TISE
- Physicslad00
- · Replies 24 ·
Undergrad Atom-photon interaction picture transformation problem 3
- KDPhysics
- · Replies 6 ·
Undergrad Feynman diagram for scalar - vector interaction
- gerald V
- · Replies 2 ·
Undergrad Bell's theorem claimed to be refuted - paper published by EPL
- emuc
- · Replies 50 ·
Undergrad Why can eigenvalue outcomes exceed probability amplitudes in quantum measurements?
- nomadreid
- · Replies 4 ·
Undergrad Probability of finding a particle outside its light cone
- RickRazor
- · Replies 10 ·
Undergrad What is meant here by "quantum mechanics–free subsystem"?
- nomadreid
- · Replies 10 ·
Undergrad What part of physics describes what happens just outside of an electron?
- Anon42
- · Replies 8 ·
Graduate How Does the Anomalous Doppler Effect Work?
- Flamel
- · Replies 1 ·
Graduate Justification for phi^4 potential
- joneall
- · Replies 13 ·
High School Quantify Quantum Eraser Experiment
- glider77
- · Replies 19 ·
High School Some questions about Wheeler's delayed choice experiment
- liuxinhua
- · Replies 18 ·
Undergrad No-cloning theorem vs state tomography identical copies
- Irishdoug
- · Replies 4 ·
High School Does a human observer or a measuring device collapse the wave function?
- Dr3vil
- · Replies 7 ·
Graduate $S^+$ and $S^{-}$ operators formula
- LagrangeEuler
- · Replies 1 ·
Graduate What is the meaning of "excess" Goldstone bosons?
- jack476
- · Replies 3 ·
Graduate Heisenberg equation of motion -- Partial derivative question
- LagrangeEuler
- · Replies 15 ·
Undergrad Can an electron in a magnetic field radiate a virtual photon?
- docnet
- · Replies 3 ·
Graduate Calculating nonequilibrium Green's Functions
- danielw96
- · Replies 1 ·
Undergrad A video about the delayed choice eraser that I made
- Strilanc
- · Replies 4 ·
Undergrad Distribution of charges as a result of the Hall Effect
- Blah God
- · Replies 1 ·
Undergrad Some questions in "Introduction to quantum mechanics"
- heslaheim
- · Replies 1 ·
Undergrad Black body radiation -- Some basic questions to aid my understanding
- AhmedHesham
- · Replies 7 ·
Undergrad Should I always be careful about dimensional consistency?
- Haorong Wu
- · Replies 5 ·
High School Description of isolated macroscopic systems in quantum mechanics
- mephistomunchen
- · Replies 48 ·
Undergrad Are Expectation Values Measured for Coupled Photons from SPDC?
- emuc
- · Replies 2 ·
Undergrad Good resources for learning a little about the wave vector
- phantomvommand
- · Replies 3 ·
Graduate Introduction to topological field theory?
- Kris-L
- · Replies 1 ·
Graduate Second Quantization in QFT
- sophiatev
- · Replies 4 ·
High School What percent of everyday-life electrons are collapsed?
- VECT
- · Replies 46 ·
Undergrad Applying Heisenberg picture to density operator
- Haorong Wu
- · Replies 2 ·
Undergrad Mixed states from entangled state
- ilikesquareobjects
- · Replies 6 ·