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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
Undergrad Finding components in momentum representation
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Undergrad Two Identical non-entangled Particle System
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Undergrad 'speed' of spooky action vs delayed choice
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High School Bell's state measurement in the Bell basis
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Undergrad Can the Planck equation be derived by considering phonons?
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Undergrad Double slit experiment question
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Undergrad Delayed choice - Bohr's experiment with a Camera
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Undergrad Is space infinitesimal? Can it be divided unlimited times?
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Graduate Atomic Orbitals and Symmetry
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Undergrad Question about double slit experiment results
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Undergrad Help to understand the wave function for atom (gas)
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High School A question about Electron spin
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Undergrad Uncertainty Principle.... Intent Behind It?
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High School Dirac Equation vs. Schrodinger Equation
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High School Still confused about superposition and mixed states
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Graduate Is entanglement based on first principles?
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Undergrad No problem at all, happy to help! Have a great weekend as well.
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High School Quantum Mechanics: Origin of the Term & Why Mechanics?
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High School Is the Higgs Field Uniform Across Space-Time or Does It Vary?
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Undergrad How are different potentials implemented experimentally?
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Graduate Srednicki's QFT: Feynman Rules and Feynman Diagrams
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Undergrad Double Slit Experiment: Magnification?
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Graduate Is this experiment real (double slit)?
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High School The Firewall Paradox: Is it Possible?
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Undergrad How can larger dips in absorption line give more element
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High School Quantum Entanglement. Is spin conserved?
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Undergrad Why is association rule in angular momentum sum not valid?
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Undergrad Interpret Heisenberg Picture: Operators & States
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Graduate Why the particle velocity in Dirac theory is equal to c?
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High School Meaning of the word 'instantaneous'
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Undergrad Feynman Lectures: negative alpha for solving Schrödinger equation
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Undergrad High Energy Photon Recieved as Lesser Energy Photons?
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Graduate Wavefunction matching two different H, not just V
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Undergrad Delayed choice, pseudo-retrocausality, massive particles
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Undergrad Particle number conservation and motivations for QFT
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Undergrad Zeeman effect sign of circular polarization
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Graduate What is the physical significance of the unitary matrix in this optical device?
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Undergrad Why are total orbital QN l,m zero for closed subshell?
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High School Is the wave function physical ?
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High School Accuracy in speed of photon - uncertainty?
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Undergrad Evalutaion of Schrodinger's equation
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Undergrad Comments on updated delayed choice erasure graphic
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High School Why is momentum the fourier transform of the wavefunction ?
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Undergrad Doubts on wavefunction conditions
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High School What is the origin of Observables?
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High School An application of the uncertainty principle
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Undergrad How can you visualize the Higgs field, or can you?
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Undergrad Spontaneous Absorption of Photons in Two State Quantum System
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Undergrad Finding probability of changing states
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Graduate How to understand the electric-field operator?
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High School Polytropic process with heat addition
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Undergrad Could you provide me a selection rule?
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Undergrad What is a time-dependent operator?
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High School Understanding Different Quantum Interactions
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Undergrad Confused about operator action
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Undergrad Defining a pulse of particular area
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Graduate Fock space and Poincaré invariance
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Undergrad Mind Bending Double-Slit Diffraction Thought Experiment
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High School Is Gravitational Quantization Supported by the Stability of Orbital Electrons?
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Undergrad Understanding Space-Time & Fields: A Flowchart Guide
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High School Neutrinos and Fermi-Dirac Distribution
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Undergrad What is the reason behind uncertainty principle?
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High School What is the reason for Schrodinger's cat experiment?
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Graduate Interpreting the K-G Annihilation Operator Expression
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Undergrad Can a Discontinuous Wave Function Be Acceptable in Quantum Mechanics?
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Undergrad Understanding ΔEΔt uncertainty
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Undergrad Understanding Internal State in Quantum Systems with Cold Atoms
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High School Understanding Correlations in Non-Realism: The Role of Extra Variables?
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High School Wave Function of a Proton in a Box with a Slide
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Graduate QFT and transitions between momentum states
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High School Is Wigner's Friend the Key to Understanding Wave Function Collapse?
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Graduate Uncertainties in Poisson processes
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Undergrad The Lagrangian of a Coherent State
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High School Should Fourier Transforms Be Taught Before the Heisenberg Uncertainty Principle?
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High School How does Bell's inequality rule out realism?
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Undergrad Field eigenstates and path integral formulation
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Graduate Conjugate variable clarification
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Undergrad Time evolution after "turning off" square well
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Undergrad What is the angle in the action-angle uncertainty principle?
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High School Other terms for indeterministic hidden variables
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Undergrad Two photon absorption or multi-photon absorption?
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High School Why is probability defined in space rather than at a point in quantum mechanics?
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High School Is an Electron Both a Wave and a Particle Simultaneously?
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Undergrad Quantum Superposition While Observing Phenomena?
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High School Energy density of charged capacitor via QFT
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Undergrad Strong Force and Wave function collapse
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Undergrad What is the Eigenvalue of Coherent States?
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High School No problem, glad I could help!
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Undergrad Is There a Reliable Source Code for Quantum Key Distribution?
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Graduate Double Slit--closing a slit while particle is in flight
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High School Classical experiment violates Bell
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High School Schrodinger cat superperposition vs sharp state
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Graduate Green's function at boundaries
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Undergrad Delayed choice quantum eraser scanning telescope
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Undergrad Big Freeze: Resolving the Universe's End?
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Undergrad Planck-Einstein: how does it separate classical from Quantum?
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Undergrad Infinite square well solution - periodic boundary conditions
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Undergrad A thought about parallel universe
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Undergrad What is the relation between Temperature and Quantum State?
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High School Does weak measurement cause mixed state?
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