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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

Undergrad New interpretation for the double slit experiment with light?
Graduate Superposition in quantum computing
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Graduate Why explain with both vectors and functions
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Graduate Wavefunction Collapse: Timeline & Effects
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Graduate Entangled photon polarization correlation
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Graduate Path Integral Basics (Why dimension increases in the integrals?)
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Graduate What is the density of states?
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Undergrad Can light excite an electron from ground state to a higher state?
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Graduate Peskin Equation (7.51): Analytic Continuation and Validity
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Graduate Energy-momentum tensor for the Dirac spinor
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Graduate Pion decay and neutrino oscillation in OPERA
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Graduate Klein Gordon equation and particles with spin
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Graduate How many ''charges'' are there in SU(2) and SU(3) symmetry?
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Graduate The state space in quantum field theory
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Graduate Cancellation of infrared divergence
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Graduate Understanding the AC Stark Effect: A Brief Description
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Graduate Classical Stat Mech with Uncertain Initial Conditions vs. Quantum
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Graduate Unitary Quantum Cloner: Micro-Macro Entanglement & CHSH Inequality
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Graduate The QED experiments Feynman describes in his Auckland lectures on Vega website
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Graduate How to find the Majorana matrices?
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Graduate Even Wave Function in 1D Symmetric Potentials: Can We?
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Graduate Completeness of eigenvectors in a complete, commuting set
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Graduate Question on uncertainty principle
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Graduate Decoherence and the randomness of collapse
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Graduate Quantum Zeno Effect and quantum decay
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Graduate Given a potential, qualitatively deducing the energy levels?
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Graduate How to Calculate Clebsh-Gordan Coefficients in Fortran?
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Graduate Spatial representation of field commutator
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Graduate Can one learn Q.Physics self taught?
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Graduate Physical meaning of zero eigenvalue
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Graduate Why symplectic symmetry has N(N+1)/2 generators?
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Graduate Annihilation operator acting on a Fock state
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Graduate Meaning of Peskin equation (7.25)
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Graduate Poisson Bracket to Commutator, What Does it REALLY Mean?
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Graduate Does Pauli's Exclusion Principle Apply to the Entire Universe?
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Graduate Why Superselection Rules are Physically Impossible
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Graduate If one generator commutes with all other,why must it be generator of U(1)?
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Graduate Bell inequality experiments and photon polarisation issue
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Graduate Can I Start with Leonard Susskind's QFT Lectures Without Prior Courses?
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Graduate Understanding Wave Function and Schrodinger Wave Equation
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Graduate Hamiltonian and Commuting operators
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Graduate Energy release from Graviton / Higgs Boson
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Graduate Why isn't p^4 Hermitian for hydrogen-like l=0 wavefunctions?
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Graduate Angular Momentum Eigenvalues/Significance of QN l
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Graduate Why the even Eigen states have less energy than odd ones?
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Graduate Is angular momentum something that is characteristic for a particle?
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Graduate Gauge Group Choice: Can U(1) Describe Color & Weak Force?
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Graduate Physical mechanism for decoherence?
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Graduate What happens to the amplitude of a photon in the double slit experiment?
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Graduate Would time travel to the past be possible if ?
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Graduate Hidden Variable - How to calculate the straight line
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Graduate Effective mass of Dirac electron increased by electrostatic potential?
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Graduate How can Black Holes emit radiation?
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Graduate History/Derivation of multi-particle wave functions?
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Graduate Excitation by photons smaller than energy interval
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Graduate Why is an Electric Current Necessary to Measure the Casimir Effect?
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Graduate What Are Potential Wells in Lennard Jones Potential?
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High School Difference between static and magnetic attraction
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Graduate Why do gluons and W and Z bosons have a limited range?
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Graduate Momentum Operator w/ Dirac Delta Potential: Justification
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Graduate Quantum Zeno Effect and Decoherence
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Graduate The Discontinuity of Wave Functions in a Dirac Delta Potential
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Graduate Dirac Notation in building Path Integrals
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Graduate Calculating Momentum of a Particle: Q&A
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Graduate Derivation of the one-particle Green's function?
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Graduate No 2 electrons can have the same energy state
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Graduate Can real bodies deviate from Planck's law?
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Graduate Measure for momentum in curved space
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High School What do pervading and aether mean?
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Graduate Tap Dark Energy for Energy Needs: Ideas and Questions
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Graduate Noob to PF, Quantum Foam question triangles?
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Graduate Exploring the Inter-Relationship of Nature's Constants
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Graduate Why are there no well-defined energy states in nature?
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Graduate Brian Cox explain Pauli exclusion principle
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Graduate Angular momentum and the hydrogenic atom
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Graduate Understanding Peskin's Argument for Equation 6.46
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Graduate What Is the Explanation for Quantum Mechanics at the Quantum Scale?
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Graduate Why is z-axis so special in hydrodgen problem?
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Graduate Momentum Operator question - Proof found in Intro to Griffiths QM
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Graduate Klein-Gordon Equation: Derivation of Density Relativistic Transform
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Graduate Why do L² and L_z form a CSCO?
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Graduate Writing Down Single Particle State in P&S Notation
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Graduate Possible Paths and Interference Patterns in the Double Slit Experiment
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Graduate Quantum Entanglement inside & outside Event Horizon
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Graduate Instanton contribution to two point function
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Graduate Question about Electron Action and study material.
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Graduate Are Current Experiments Impacting Quantum Coherence in Consciousness?
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Graduate Renormalization group and universality
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Graduate How Does Schwinger's Method Reveal Information About Feynman's Propagator?
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Graduate Why does the momentum of a matter wave depend on the phase velocity?
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Undergrad Understand Orbits & Orbitals - Get Clarified Here
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Graduate Dirac Principle Value Identity applied to Propagators
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Graduate How to block tunneling current?
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Graduate How Does Rotating the Local Basis Affect Quantum Entanglement of Photons?
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Graduate Why the Lagrangian must involve derivative of field?
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Graduate Measuring classical object to arbitrary precision
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Graduate Deriving Transition Amplitude: Hamiltonian & $\psi_0 \to \psi_1$
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Graduate Wave-Function, Fourier Transform, and Speed
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Graduate Can Virtual Particle Lifetimes Be Calculated?
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Graduate Proposal for a Quantum Delayed-Choice Experiment
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Graduate Is Gravity Affected by All Types of Energy?
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