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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 How valid is the indivisible interpretation of quantum mechanics?
Graduate Splitting photons are entangled?
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Graduate Conjugate of amplitude with imag. # in exponent and out of exponent?
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Graduate What is the origin of infrared divergence?
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Graduate The Illusion of Free Will in the Context of Time Travel and Paradoxes
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Graduate Do you have to use a Beta-barium borate crystal in order to entangle photons?
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Graduate Why Do Some Books Only Consider Zero Mass Limit for Renormalization Group?
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Graduate What is the meaning of quantum in quantum mechanics?
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Graduate Why we call ''nonlinear'' sigma model?
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Graduate Two Degrees of Freedom for Photons - Energy & Momentum
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Undergrad Is this a reasonable analogy for quantum tunnelling?
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Graduate Layman's question on Quantum decoherence
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Undergrad Need an Exact Explanation of the Double Slit Experiment
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Graduate Problem about scattering amptitude
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Graduate Can a wavefunction change from normalizable to non-normalizable over time?
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Graduate Question about applying the Pauli Exclusion Principle
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Graduate Confusion (7) from Weinberg's QFT.(Why is there a vacuum field)
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Graduate Alternative histories and photon
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Undergrad Uncertainty Propagation Argument
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Graduate Quantum states and complex numbers - newbie question
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Graduate Is superluminal communication possible?
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Graduate Dispersion relation and group velocity
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Graduate Black Body Radiation: Classical Equipartition vs Boltzmann Distribution
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Undergrad Measurement of (brightness of) double slit experiment
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Graduate When and how does entanglement end?
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Graduate How Does Quantum Scattering Theory Connect to Electromagnetic Waves?
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Undergrad Motion of a photoelectron
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Graduate I need an explanation behind this calculation
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Graduate Eigenvectors of the Hamiltonian
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Graduate Can macroscopic objects interfere with themselves like quantum particles?
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Graduate Wave nature of electron, interference and standing waves
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Graduate What does quantum mechanical mean?
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Graduate What causes wavefunction collapse?
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Graduate Could Consciousness Alter Early Physics after the Big Bang?
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Graduate Entanglement between the Future and the Past in the Quantum Vacuum
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Graduate How Does the Pauli Exclusion Principle Influence Orbital Stability in Atoms?
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Undergrad Can an atom be anywhere in space?
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Graduate Is action at a distance possible as envisaged by the EPR Paradox.
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Graduate Wavefunction Collapse: Measuring Electron Spin
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Graduate Degenerate Perturbation Theory Wavefunction Correction
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Graduate Propagator counterterm in phi^4
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Graduate Using the Double Slit Experiment & encoding photons with binary data
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Graduate Pauli matrices forming a basis for 2x2 operators
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Graduate Quantum Mechanics: Particles & Position Explained
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Graduate How to derive a numerator relation in vertex correction in Peskin p191
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Undergrad Can Electrons Absorb Photons With Different Energy Levels?
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Graduate Calculating Zero Point Energy with DVR
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Graduate Is V_{eff} truly the density of effective action in QFT?
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Graduate How Does New Macroscopic Entanglement Impact the Future of Teleportation?
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Graduate Photons, what makes them a act like a wave?
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Graduate Hi,Can anyone explain why in field theory we require [f*(x),f(y)]
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Graduate What is the Operator Product Expansion in Interacting Field Theory?
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Graduate Dimensional Regularisation - Contracting/Commuting Gamma Matrices
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Graduate Understanding Fock Spaces: Explanation and Examples
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Graduate Cant understand similar proof Quantum numbers from PDE (pdf attachment)
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Graduate Does particle at rest behave as wave?
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Graduate Why do we only average and sum over two independent polarizations in scattering?
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Graduate Zero momentum distribution and consequences on uncertainty principle
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Graduate Quantum Particle Momentum Measurement: Theoretical and Practical Considerations
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Graduate H|0> = 0? Does that mean that zero-point is ZERO?
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Graduate Double slit experiment & time (action at a distance?)
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Graduate How Does Electron Spin Orbit Influence Ferromagnetic Transformer Functionality?
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Graduate Schrodinger Equation for a Bra Vector
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Undergrad How does a photon gain momentum?
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Graduate Does a modulated electromagnetic wave contain photons of different energy?
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Graduate Weinberg QFT I: Lorentz Transformation with interaction
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Graduate Is there molecular friction and movement in balanced loads at the quantum level?
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Graduate Is quantum mechanics fundamental theory?
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Graduate Creation/Ann operators acting on <x|p>
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Graduate Is the Quantization of Time a Real Possibility?
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Graduate Electromagnetic Potential as an Observable
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Graduate Question on the representation of Poincare algebra generators on fields
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Graduate Quantum coherence and neutrino detection
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Graduate How is the wave function of a photon described in quantum field theory?
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When do you think Quantum Computers will be out?
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Graduate Lagrangian, Hamiltonian and Legendre transform of Dirac field.
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Undergrad Is a polarizer a filter or a converter?
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Graduate Angular Momentum and Expectation Values
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Graduate Feynman's third general principle of QM
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Graduate A bunch of basic questions on electrons
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Graduate Complex Scalar Field and Probability Field
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Graduate Wave superposition nothing more than abstraction?
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Graduate How Does the Double-Slit Quantum Eraser Work with Walborn's Setup?
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Graduate How can I apply a unitary transformation to rotate a 3D complex wave function?
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Graduate Uncertainty principle and electrons
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Graduate Normalization factor in wave equation
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Graduate Understanding Red Shift: A Derivation from Classical and Relativistic Physics
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Graduate Backwards causation: Is there any proof really against it?
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Undergrad Can an electron collide with the nucleus of an atom?
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Graduate Understanding Stimulated Emission: Got the what, how about the why?
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Graduate Using Dirac Bracket: Books & References for Examples
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Graduate What causes Bragg planes in materials?
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Graduate What is the significance of light-shifted ground states in sub-doppler cooling?
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Graduate How is the fundamental group related to quantum statistics?
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Graduate Does Bell's theorem imply stronger or weaker correlation?
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Undergrad Determine frequency of emitted photon
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Graduate Virtual Particles and The Law of Conservation of Energy
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Graduate Maxwell's or Schrodinger's Light Wave
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Graduate One electron two slit exeriment when one eletron is emited after 1 hour
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Graduate Confusion (6) from Weinberg's QFT.(in and out state)
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Graduate Shooting an electron at an ion's nucleus
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