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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 "The wavefunction never collapses"
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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Undergrad Relationship between negative mass, energy and antimatter
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Undergrad Fourier transform and locality/uncertainty
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Graduate Field strength measurement and continuity
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Undergrad Representations of the Poincaré group: question in a proof
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Undergrad Why does "wave particle duality" not exist anymore?
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Undergrad How do electrons impact the probability of fusion in a non-plasma fluid system?
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Undergrad Using measurement to extract energy?
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Graduate Srednicki's normalization choice for lie algebra generators
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Undergrad Frustrated spontaneous emission
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High School Classical physics emerging from quantum physics
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Graduate Scalar Fields with the Same Mass
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Undergrad Understanding the Mistake in Dirac's Hamiltonian for Field Quantization
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High School Physical significance of wave function
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Graduate Quantum telescope (different meaning)
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Undergrad Do Pions Exist Naturally in High Z Nuclei and How Do Their Half Lives Change?
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Undergrad Are any electrons ejected below the threshold frequency?
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High School Do Instantaneous Reactions Imply Infinite Speed in Quantum Entanglement?
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Graduate Forming a unitary operator from measurement operators
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High School If quantum particles can move to other universes, can macroscopic things move?
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Undergrad Particle has certain energy levels in a potential well?
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High School How does entanglement occur at such incredible speeds?
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High School Question about the Heisenberg U.P. & the Observer Effect
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Graduate How can quantum mechanics contribute in a Nuclear reactor
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High School Momentum in Atoms: Understanding its Role in Potential Energy
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High School What is the wave function for a single electron?
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Undergrad Creation operator and Wavefunction relationship
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High School How do we know some particles don't exist until measured?
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High School How Precise Can QED Predict the Motion of Charged Particles?
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Graduate Problem about Kohn Hohenberg theorem
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High School How is the Schrodinger Equation used in calculating forces of nature?
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Undergrad Concerning the Nature of Quantum Measurement....
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Undergrad Is the Joint-State of Alice and Bob's Instruments Separable in Spacetime?
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