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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

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