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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
I Famous 'Aspect Experiment' -- Which Type of Polarizers Were Used?
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I 2-Slit: How do we know photon guns only produce single photons?
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A Vector Spaces Associated with Quark Modes in k-Space
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I Diffraction of point source/s and duality
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B Heisenberg uncertainty principle -- Questions about a practical experiment
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I Delayed quantum eraser: turning off sensor to bring back interference
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B A homebrew quantum computer simulator
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A Entropy increase in proton/proton collision?
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A Two-electron Lagrangian in QED
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B Is space-time curvature a curvature of the Higgs field?
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I Relativity Considerations for Measurements on a Free Particle
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I How to derive momentum operator in position basis via its definition?
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I Why is the coupling factor constant in QFT?
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I How to find common eigenbases of momentum and energy in infinite well?
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I Has superdeterminism been proven recently?
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B What particle represents the mass-energy conversion in a proton?
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B How would a hypothetical graviton escape a black hole?
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A Any relation between Quantum Chaos and Quantum Field Theory?
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A Spectral Decomposition of Constant Functions Utilizing Fourier Harmonics
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I Lagrangian Mechanics, Continuous Particle Paths and QFT
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I Why do ##t## and ##-i\hbar\partial_t## not satisfy the definition of a linear map/operator in Hilbert space?
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I Meaning of eigenvalue of projection operator/projector
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I Counting Total Spin for N Two-Level Systems (TLS)
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A Representation in second quantization
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B In QFT, do Fermion fields belonging to distinguishable particles commute or anti commute?
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I Born rule as an axiom or as a theorem?
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B A stupidly basic question about expectation value
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I What Are the Key Concepts of Quantum Field Theory?
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I Question on interference equation in a recent paper
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I How can I estimate the K force constant for bond types without special tools?
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A Schrodinger equation/Madelung equation phase transformation
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B Double-slit experiment and time
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A Acceleration in quantum mechanics
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I Is There A Study Showing The Observer Effect Ignoring Conscious Intent?
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I Expectation value of the momentum for an electron in a box
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A Seeking papers on Energy Level Diagrams for LiNO2 and O2
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B Quantum Superposition And A Coin
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I Meaning of the word 'particle'
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I Do physically rotating particles affect Stern Gerlach results?
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A Polarization in a 3 level system
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I What are the implications of this "Negative Time Experiment"?
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A Question about perturbation theory
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A What is the quantum picture of laser field accelerating free electrons?
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I Number of Higgs "particles" per unit volume
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I Does quantum tunnelling affect the magnitude of the Casimir Effect?
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I Infinite energy from an electric field?
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I Why protective measurement is important to understand psi?
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I My problem with time-dependent Schrodinger equation
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B 3 Particle entanglement
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I Calculating qubit purity/entanglement in a quantum computer
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A QED and photon path experiments
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A Interesting Paper On QFT and Quantum Measuremets
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I The claymath 4-d QFT problem and virtual particles (as an example)
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A A question of separability and entanglement
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B Can someone please explain to me the motion of an electron?
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I Textbook proof of repulsion/attraction of equal charges according to odd/even spin
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I Are Dot Products and Dirac Brackets Interchangeable in Vector Mathematics?
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B A quick question about Planck's constant
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B Double slit experiment wave collapse
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I The coefficient of expansion for spin addition
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I Does a certainty in the position imply infinite variation in speed?
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B Why do photon polarization experiments show similar outcomes in different situations?
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A How does QFT treat Young’s Double-Slit Experiment?
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I What's the relation between spinor space and SO(3) vector space?
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A Computer Model for a QCL laser
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A Gravity has finite reach? (per Claudia de Rahm)
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I Does a Sensor interact with atoms in the double slit experiment?
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I How does a photon travel?
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I The components of Dirac Equation -- Bosonic Lagrangian?
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I How Does the Heisenberg Uncertainty Principle Relate to Electron Confinement?
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I Simulation of CHSH inequality experiment in Excel
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A Method of calculating the vacuum energy divergence
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I Vacuum decay likelihood and consequences
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A Time-ordered products derivation in "QFT and the SM" by Schwartz
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I Scaling Dimension of a Field in CFT
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B Does Particle System Collapse Depend on Mass, Momentum, or Complexity?
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A Calculating higher order terms for Electron Anomalous Magnetic Moment
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I FTL signals connected to a previous non-FTL discussion are possible?
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A Converting momentum sums to integrals in curved spacetime
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I Laser interference pattern flickering
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B Can the probabilities of state vectors |r⟩ and |i⟩ be determined from |ψ⟩?
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I Tips on generating entangled photon pair with SPDC entanglement source
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B Is it possible to apply thermodynamics to magnetic/weak/nuclear fields
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I Will all objects in the Universe transform into black holes through quantum tunneling?
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B Gluons turning into quarks and antiquarks
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I Laser interference fringes fading in and out of view
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I Four Questions on vacuum phase transitions in the Universe...
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B Determining Electron's Momentum and Position Simultaneously
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A Multi-scale Decoherence and the Quantum-to-Classical Transition
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A Magnetic Vorticies In Superconductors Don't Confine Electrons
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A Going from Kronecker deltas to Dirac deltas
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I Poisson spot with single photons
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I Mathematical basics of quantum mechanics
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I Could Quantum Dots Between Optic Fibers Create Photon Interference?
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I Degenerated perturbation theory
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I von Neumann Measurement Scheme
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A Questions about scale dependence and renormalization schemes
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I What is the meaning of "same direction" for spin measurement?
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A Regarding Nucleon Penetration into stationary plasma cloud
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I Are certain combinations of quantum numbers (basis vectors) forbidden?
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