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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 Valid local explanation of Bell violations? (Pegg et al., 1999; 2008)
Is information lost if a particle is annhilated by it's antiparticle
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Understanding Spin in Quantum Mechanics: What Does Measuring Along an Axis Mean?
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Symmetries and Spin orbit interaction
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Quantum physics vs classical physics
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Black holes, universe boundaries and geometry
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What Are the Limitations and Possibilities of Measuring Time?
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Prove Heisenberg Uncertainty Principle for Ground State Harmonic Oscillator
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What does the operator C^3 represent in Bra-ket notation?
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Immortality and Schrodinnger's Cat
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Lagrangian visualisation and Uncertainty Principle
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Proof of Baker-Hausdorff Lemma - Find Online for Quantum Mechanics
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Correlation functions vs. Scattering Amplitude
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Is the Photon's Mass Really Zero?
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QM: measurement vs interaction
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Explanation of a failed approach to relativize Schrodinger equation
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Perturbation theory infinite well
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Is there a universal relationship between momentum and wave vector?
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'Advantages' of Quantum Encryption
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Feynman Path Integral - All Possible Paths - Relativity Conflict?
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Help understanding position operator eigenfunction derivation
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Can an even number of Fermions be a Bosonic system?
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Calculation of the Pontryagin index
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Experimental evidence for the ground state of energy
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Why is it impossible to teleport quantum states?
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Young's Double Slit Experiment with Single Photon Counters and Offset Mask
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Momentum Eigenfunctions and Definite Momentum
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Time partial derivative of a wave function
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Qualitative description of photon from faraway star
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Dirac equation for proton/neutron
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Quantum Correlations with no Causal Order
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A cat, an electron, and a metaphysician walk into a bar
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Entanglement after the photons no longer exist
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Is the Planck length relative?
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So what does a single photon do to a group of charged particles?
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Integrating the Expectation Value
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Understanding Unpolarized Spin States in Quantum Mechanics
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Probabilistic breakdown of quantum mechanics?
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Parity Exchanges Right & Left-Handed Spinors: Q&A from Page 94 of Tong's QFT
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Bloch Oscillation in 1D crystal Lattice
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Proving Eigenstate Energy: Multiply ψ(x) by Hamiltonian Operator for e-ikx
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Help understanding this Lie Algebra/Group stuff
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Origin of the schroedinger's wave equation
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I must be doing something wrong ?
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Why do wavefunctions sometimes combine?
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What Are Negative Energies in System ψ?
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Is the vacuum state's energy affected by the size of the box?
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Solving the general Schodinger equation
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Expanding Higgs Field: Where Does Energy Come From?
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What Determines the Direction of a Dipole Operator in Quantum Optics?
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How does quantum mechanics explain the big bang? Infinite realities?
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On the meaning of indeterminism of Quantum Theory
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Boson Statistics: Why Does the Rule Fail?
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Unitary operator + Lorents transformations (question from Peskin)
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Charge as a coefficient of the Lie algebra?
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How do I expand gamma matrices without adding a unity matrix?
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Problem understanding Green's function equality in Messiah QM II
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Quantum Tunneling Probability for a rectangular barrier
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Quantum Tunneling VS Water (or any other) Waves
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Quark-Gluon Plasma: Temperature, Validity & Quantum Theories
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What is the range of angles for the quantum spin correlation formula?
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SU(2) generators in j=1, and pauli uncertainty
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Time Dependence in Pictures of QM
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What is the Operator for Absolute Value of Momentum in Quantum Mechanics?
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1D Groundstate wavefunction always even for even potential?
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Quantum linear response theory?
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Radius of the electron and uncertainty
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Why is the pilot-wave theory controversial ? Is it?
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Conservation of momentum and uncertainty.
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Query regarding concepts of charges
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How does conservation of energy/mass apply to neutrinos?
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Is the Quantum Spin Complementary?
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Deriving Measurement Operators for Realistic Detectors
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Electron Configuration for Multivalent electrons.
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Spectrum of Sodium vs. Hydrogen
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Can a conscious observer collapse the probability wave?
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Question on the probabilistic nature of QM
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Repeling particles on a ring, minimum angular momentum.
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Noether currents for local gauge symmetry
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Can EM Radiation Create Repulsion on Non-Magnetic Objects?
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How Can the Bell Experiment Be Performed with a Guaranteed Polarization?
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Field theory plane wave volume integral
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The crazy world of quantum mechanics.
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Plane waves and sites distance in a lattice
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Need help with Weinberg's QFT-Space inversion and time-reversal
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What is the Smallest Unit of Time for Measuring Acceleration?
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Visualising mathematical concepts in QM - comments needed
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Blurness of rings in electron diffraction
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Universe from Nothing: A Book Review
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An issue with the vector model of spin and its operators
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Equivalent vectors in a Hilbert space
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Quantum Mechanical Tunneling Probability
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Double-slit experiment questions
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Can Two Particles Occupy the Same Position in Quantum Mechanics?
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Big bang according to Quantum Mechanics?
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Photon Emission from electrons and the EM field
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Who does or sees an experiment on rectangluar potential barrier?
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Trying to understand Quantum Entanglement, String Theory, and the BB
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Conservation of L^2 and Lz in central potential
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What is the hardest question to ask a quantum physicist?
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Do you use QM in Conjunction With QED/QCD?
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