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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)
High School Can retrocausality explain the wave properties in the double slit experiment?
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Graduate Anomalous field dimension in the on-shell scheme
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Graduate Majorana Lagrangian and Majorana/Dirac matrices
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High School What Happens to High-Energy Particles in Cosmic Rain?
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High School "travel time" of appearing and disappearing?
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High School Delayed choice quantum eraser experiment interference pattern question
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Undergrad Entanglement & Spooky Action at a Distance Question.
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High School Local Hidden Variable Model That Equals QM Predictions?
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Undergrad What is the Significance of Isospin Components in Particle Physics?
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Undergrad Regarding consciousness causing wavefunction collapse
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High School Does precise momentum guarantee precise energy?
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High School Are Molecules Entangled Across Distances in Biochemistry?
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Undergrad Does the wave function shorten when approaching light speed?
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High School Understanding Atomic Systems: Nucleus and Electrons in a Constant State
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Undergrad Zeeman effect after a Stern-Gerlach experiment
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Graduate Why do we use BRST in Yang Mills and where does it come from?
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High School How do electrons behave when energy is added to an atom's ground state?
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High School Examples of multiple entanglements
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Undergrad Does spatial entanglement reduce total classical entropy?
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Graduate Photon propagator in Coulomb gauge
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Undergrad Spherical Harmonics from operator analysis
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Undergrad Absorption rate on a quantised EM field
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Undergrad Checking My Understanding: Lagrangian & Path Integral Formulation
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Undergrad Is Entropic Uncertainty Principle taken seriously in QM?
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Undergrad Revisiting Heisenberg's Uncertainty Principle: Is There Room for Improvement?
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Graduate Gauge Theory: Principal G Bundles
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Undergrad Why not calculate the "trajectory" of a wave function
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Undergrad Timelike Killing vectors & defining a vacuum state
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Undergrad 'Normalisation' of Fourier Transforms in QFT
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Undergrad SO(2n) representation on n complex fields
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Undergrad How is the CSCO in an harmonic oscillator?
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Undergrad Why isn't the photon energy h nu over two?
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Undergrad Vector Operators in Quantum Mechanics: Adapting to Different Coordinate Systems
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Undergrad Can light be entangled in polarization and still exhibit interference?
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High School Photon producing Electron-Positron pair's effect on c.
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Graduate Constant Solutions of Real Scalar Field
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High School If energy increases with decreasing wavelength, then...
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Undergrad How does measurement work in a two particle universe?
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Undergrad Decoherence Pure States Into Mixed States
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Graduate Calculating Einstein's coefficients in QFT vs equilibrium
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Undergrad If electromagnetic waves propagate, do photons as well?
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Undergrad How do we interpret an EM wave using Quantum Mechanics?
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Undergrad Questions about the Dirac delta
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Undergrad Two-Level Atom Driven by Two Lasers?
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High School Is Light a Wave or a Particle? Understanding Its Nature and Travel to Our Eyes
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High School Heisenberg applied to accelerated particles
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Undergrad Spherical Harmonics: Arriving at Equation
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Undergrad Actual example of a mixed state not part of entangled state
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High School Terry Tao's Interesting View of QM
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Undergrad Quantum entangled image sensor for space camera-telescope
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Undergrad Experimental history of quantum physics
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Undergrad How does sequential measurement affect observable data in molecules?
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Undergrad Similar behavior between anti-particles and waves?
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Graduate Discrete measurement operator definition
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High School QFT for Beginners: Operators & Their Physical Significance
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Graduate What Hilbert space for a spinless particle?
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High School How much space does a single photon occupy?
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High School Measuring momentum and position in particle colliders
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Undergrad Establishing consistency between a wave model of the photon and a particle model
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Undergrad (QED) The initial mass and the correction cancelling out
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Undergrad Hamiltonian in Quantum vs Classical
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High School Why don't emission/loss of virtual photons lower a charge's energy?
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Undergrad (Conceptual) Infinity energy via quantum tunneling & Nuclear Fusion?
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Undergrad Lorentz transformation and its Noether current
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High School What is Quantum Spin? Understanding Basics
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Undergrad Radiative collapse of an electron in a classical atom
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Undergrad Fermi's golden rule derivation
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Undergrad Do quantum fluctuations mean metric fluctuations?
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High School Delayed Choice Quantum Eraser - Experimental Details
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High School Can an atom be in two places at once?
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Undergrad Determinant problem in an article about QCD phase diagram
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High School About electrons and the photoelectric effect
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High School Is there any state of matter colder than solid?
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Undergrad Quantum Teleportation: Exploiting Entanglement & No Cloning Theorem
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Undergrad Deductions of Formulas for Energy
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Insights Struggles with the Continuum - Part 7 - Comments
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Undergrad Energy-time versus time bin DOF
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Undergrad What does the 0-ket in this state function expression represent?
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High School Does Momentum Affect Potential Energy in a Particle Box?
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Undergrad Where can I find textbooks and articles on relativistic Landau levels?
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Undergrad Path Integral in QM: Resolving Confusion on Causality
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Undergrad Are QFT fields the medium for light?
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Undergrad Does Bra-Ket Notation Clarify the Gradient Operator in Quantum Mechanics?
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Undergrad Do Hydrogen and Helium Electrons Share Identical Energy Quantums?
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Undergrad Potential terms in SE & Quantum Chemistry
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Undergrad Usage of partition function in derivation of Sackur-Tetrode
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Undergrad A new approach: retrocausality in QFT
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Graduate Similarity in form of time-evolution and Gibbs weight?
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Undergrad Solving for <E^2> of a non-stationary state of the QSHO
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Undergrad Does a field operator always commute with itself?
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High School The Dirac equation and the spectrum of the hydrogen atom
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Undergrad Bell's Inequality is only valid for non-negative numbers
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High School Quantum Entanglement & Special Relativity: BBC Report
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Undergrad Just what is information, and what is its place in Nature
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High School Double-slit experiment observed by split brain
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Graduate Dyson's Formula from Tong's lecture notes
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High School How does quantum entanglement protect a key?
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Undergrad DeBroglie wavelength & particle-wave duality
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Undergrad What does it mean to span the Bloch sphere?
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Undergrad Unruh effect in full spacetime
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