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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.

Quantum Interpretations and Foundations

Graduate Universal quantum physics
Graduate Dirac-Feynman-action principle and pseudo-differential operators
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Graduate Hermite polynomial and transformation
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Graduate What is the role of proper time in quantum theory
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Graduate How Does the Stern-Gerlach Experiment Illustrate Quantum Spin Measurement?
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Graduate Harmonic oscillator in a time-dependent force
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Graduate Questions about the Double Slit Experiment
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Graduate How to create charge from light?
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Graduate Integrals in the derivation of the Optical Theorem
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Graduate Factor of 'i' and antisymmetrization in Dirac Lagrangian
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Graduate Quantum Mechanics and the Nature of Determinism
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Graduate Reaching absolute zero and BEC
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Undergrad Proton-electron interactions interms of photons
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Graduate Meaning of zero probability density
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Graduate Position space - momentum space
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Undergrad Is interference always present in a single slit setup?
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Graduate MS Renormalization: Questions & Answers
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Graduate What are the key concepts in Srednicki's explanation of Feynman diagrams in QFT?
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High School Zeno's Paradox (Quantum Level)
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Graduate FAQ says refraction isn’t from absorption and emission
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Graduate Prove d (\delta x) = \delta (d x): Solutions & Tips
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Graduate Inherent impossibility of knowing both position and momentum
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Graduate Inner product on boson one-particle space
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Graduate How do you entangle particles?
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Undergrad Light Wave Particle Confusion: Can 2 Exist in Same Place?
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Graduate Need Help (not Homework question)
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Graduate Solving the Entanglement Problem: A Quantum Mechanics Tutorial
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Graduate Old Quantum Theory = Oscillations?
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Graduate Partial Trace For Tripartite Systems
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Undergrad Recreating Thomas Young's Double Slit Experiment
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Graduate Probability Amplitude and Time Evolution Operator
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Graduate Solving Mark Srednicki QFT: Exact Propagator Problems (13.12, 13.13, 13.16)
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Graduate Peculiar feature of a commutator, can anyone explain?
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Graduate Electron tunneling and classic electrdynamics.
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High School What Are Quantum Numbers and Spin in Physics?
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Graduate Hamiltonian for non-conservative forces?
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Undergrad Why does glass feel as cold as metal despite being non-conductive?
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Graduate Absorption/Emission of photons of specific frequency (Doppler Effect)
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Graduate How can one build a non-trivial operator with a zero mean value?
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Graduate Commutation relations in relativistic quantum theory
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Graduate Magnetic Field in Natural Units: Expressing \hbar
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Graduate Is a Year-Long Quantum Chromodynamics Class Worth the Exam Stress?
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Graduate Is complex momentum density possible?
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Graduate Can a particle's wavefunction become perfectly flat in empty space over time?
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Graduate Study Lie Groups: G. 't Hooft's SU(2) Index Convention
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Graduate Quantum Mechanical Scattering (3D) - What about forward scattering?
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Graduate Creation Operator of Harmonic Oscillator
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Graduate Why need *complex* wavefunction?
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Graduate Ehrenfest theorem and Heisenberg quantum mechanics
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Graduate Physics of Electron Probability Clouds
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Can a simple wooden stick be used to send instant messages across space?
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Graduate Eliminating the coincidence counter
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Graduate Constructing Unitary Matrices for Rotations in Hilbert Space
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Graduate Can Momentum be Calculated Without Measuring Position in Quantum Mechanics?
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Graduate Relativistic quantum field theory:antiparticles
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Undergrad Compton scattering contributes to color in any way?
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Graduate Forced Harmonic Oscillator with Path Integral
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Graduate Negative energy/imaginary momentum
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Graduate Magnetic flux quanta in ground state hydrogen
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Graduate Is Quantum Physics All About Total Randomness?
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Graduate How do you determine that a particle is/was entangled?
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Graduate Shrodinger Equation, where did it come from?
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Graduate Schrodinger's Eqn: Harnessing Extra Dimensions?
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Graduate Partial Measurement / Teleportation
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Graduate Is a photon's wavelength relative to the velocity of its source?
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Graduate What is the purpose of trace in quantum mechanics?
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Graduate Can Quantum Mechanics Explain Particle Behavior in Video Games?
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Graduate Interference seen in a member of an entangled pair
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Graduate What is the Interpretation of the Inverse Property of a Delta Function in QM?
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Graduate About distinguishable and indistinguishable
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Undergrad How Do Electrons Behave Within an Atom?
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Graduate Question About Calculation in Maggiore's Quantum Field Theory
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Graduate How is cosine squared used in measuring particle properties?
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Graduate Experiment involving photoelectric effect
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Undergrad How Does a Half-Silvered Lens Affect the Young's Two Slit Experiment?
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Graduate Understanding Mixed vs Pure States in Quantum Mechanics
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Undergrad Simple double slit question
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Graduate Double Slit Experiment: Is Observation Equipment Interfering?
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Graduate Wavelength or amplitude < a Planick length?
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Graduate 2-slit experiment for electron
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Graduate Completeness of Quantum Mechanics
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Graduate Matrix representing projection operators
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Graduate Are force carrier particles instantaneous like gravity in relativity?
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Graduate Why does the system has lower energy if its wave function is symmetric?
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Undergrad Photoelectric Effect - Electrons
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Graduate Hydrogen atom ground state with zero orbital angular moment question.
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Graduate How Does a Smaller Wavelength Photon Resolve Smaller Distances?
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Graduate Angular frequency of a matter patter
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Graduate Delayed Choice Quantum Erasers
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Graduate Researching Neutron Imaging: Is Imaging a Single Molecule Possible?
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Graduate Outer product problem of derac notation
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Graduate Momentum in Quantum Mechanics: Defining, Measuring, & Interpreting
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Graduate Feynman rules for vector bosons
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Graduate Another annoying double slit question
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Graduate Quantum Computation: 2 Interesting Qs
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Graduate How to deal with index in the problem of thermal field?
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Graduate Req: A conceptual QFT example
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Graduate The surprisingly simple linear potential solution
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Graduate Rayleigh scattering vs raman scattering
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Graduate Quantum randomness vs. dice randomness
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Undergrad What is the relationship between electron movement and rest mass?
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