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