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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

Help me understand indeterminism in standard quantum mechanics
High School Entangled particle decoherence question
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High School "Quantum Field Theory, as Simply as Possible" upcoming publication
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Undergrad Is the Adjoint of the Position Operator Self-Adjoint?
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Undergrad Infinite Square Well with an Oscillating Wall (Klein-Gordon Equation)
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Undergrad How to apply potential operator ##V(\hat{x})##
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Undergrad Potential Energy of an Electron-Nuclei Interaction in DFT
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Graduate Double double slit experiment and path information
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High School What does it mean that a spin 1/2 particle needs two full rotations?
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Undergrad Kinetic Energy and Potential Energy of Electrons
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Undergrad What is the physical meaning of concurence (quantum information)?
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Graduate Electron EM Field as Local Gauge Variation of Electron Matter Field
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Undergrad Clarification on how bra ket works here
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Undergrad Probability current density of a stationary state
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High School Pair production -- Seeking clarification of the explanation
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Undergrad Can Spinors Be Represented as Square Roots of Vectors in Clifford Algebra?
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Graduate Probabilities of couples of impacts - Bob and Alice and Young experiment
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Undergrad Can we accurately predict the properties of gold?
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Graduate QED Formulation with Massive Photon Fields
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Undergrad Can a Path Integral Formulation for Photons Start from a Massless Premise?
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Undergrad Odds of getting pairs -- QM version
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Undergrad Why Are There So Few Quantum Time Machine Models?
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Undergrad Definition of magnetic moment in quantum mechanics
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Undergrad Does it make sense to speak about the Grandfather paradox in QM?
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Undergrad Hamiltonian of a particle in a magnetic field
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Graduate Majorana representation of higher spin states
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Graduate Why Is Dissociation Rate Proportional to Current Raised to the Power of N?
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Graduate Definition of finite size, radiative and weak magnetism corrections
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High School Does the Schrödinger Equation Imply a Deterministic Universe?
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Graduate Entangled particles in curved spacetime
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Undergrad Exact dynamics of spin in varying magnetic field
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Graduate About Ruling Out Real-Valued Standard Formalism of Quantum Theory
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Undergrad Quantum Mechanics without time?
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Undergrad Projection postulate and the state of a system
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Undergrad Informational Interpretation of quantum mechanics?
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Undergrad Spin, pseudo-spin or whatelse? (cavity)Polariton polarimetry question
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Undergrad The determination of a particle's spin
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High School Can probability waves be "focused"?
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Undergrad How can we observe and measure interacting vacuum?
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Undergrad How should we interpret the Möbius-strip image of spinors?
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Undergrad Why ##S_z|+\rangle=\frac{\hbar}{2}|+\rangle##
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Undergrad Frequency of EM waves in classical and quantum physics
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High School What proof do we have of wave functions?
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Undergrad Bell vs Kolmogorov: Unravelling Probability Theory Limits
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Graduate Call for experiment : Delayed Choice and Quantum Zeno Effect
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High School Unitarity in GR+QFT: Obeying Full QG Model?
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High School Wave-Particle Duality -- When is it a wave and when is it a particle?
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Undergrad What is the difference between charge and force carriers?
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Undergrad X-ray fluorescence photons question
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Graduate Measurement in QFT: Mapping Fields to Theory's Math Formalism
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High School Quantum Entanglement information transmission idea to knock down....
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Graduate Counting on a computing system
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Undergrad Where do these time derivatives of Pauli matrices come from?
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Undergrad What Is the Diameter of a Photon?
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Graduate Feynman propagator for a simple harmonic oscillator
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Undergrad CQED understanding superconducting qbits circuits
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Undergrad Question about the Which Way experiment & the detectors used
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High School Are there any empirical tests for the GRW extension of quantum mechanics?
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Undergrad Entropic effects of the Uncertainty Principle?
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Undergrad Young's Double Slit Experiment: Is it Possible?
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Graduate What Are the Dimensions of Hilbert Space Elements in Quantum Mechanics?
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Undergrad What is the spin-boson model for decoherence in a Penning trap?
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Undergrad Quantization of the electromagnetic field
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Graduate Perturbative Renormalization in Phi 4 Theory
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Undergrad Angular momentum of an atom within a rigid body in motion
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High School Peculiar View of Density Matrices: Is There a Problem?
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Graduate Loop Quantum gravity or String theory?
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Undergrad Frontiers in Physics had 2 papers quest. Bell's theorem, any othrs?
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Undergrad Does entanglement interfere with causality?
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Undergrad Physical interpretation of this coherent state
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Undergrad How should I think about decoherence?
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Undergrad Continuous Spectrum and Energy levels of Electrons (Energy Bands)
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High School Tardigrade is first multicellular organism to be quantum entangled
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Graduate Renormalization with hard cutoff of a loop diagram with single vertex
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High School Quantum Decoherence: What Happens to Other Outcomes?
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Undergrad Parity Selection Rules: I'm Confused
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Graduate Why is gauge invariance important in quantum mechanics?
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Graduate Degenerate Perturbation Theory: Correction to the eigenstates
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Graduate In QFT, what is the momentum of a created particle?
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Undergrad Are all (pure) states physically realizable?
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Undergrad Blue lights (LEDs) consume more power than red (and green)?
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Undergrad When does an even potential give both even and odd solutions to Schrodinger's Eqn?
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Undergrad A thought experiment concerning determinism in quantum mechanics
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Undergrad Interference of signal photons entangled with idlers
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Undergrad Virtual Photons: The Long-Distance Repulsion of Electrons
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Undergrad How are good quantum numbers related to perturbation theory?
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Undergrad A popular explanation of Bell's inequalities
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Undergrad Does putting a hydrogen atom in a box mix angular momentum states?
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High School Is the weak nuclear force attractive or repulsive or both?
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Undergrad What Insights Can the Feynman Diagram of γ+γ→γ+γ Provide?
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Undergrad Understanding the Raising and Lowering Operator: A Scientific Analysis
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Graduate Klein paradox in the massless case
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Undergrad How does QM explain that we see electrons circulating in a magnetic field?
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Undergrad Non-relativistic limit of Klein Gordon field
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Graduate Spontaneous and stimulated emission in Planck's radiation law
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High School Is matter a particular form of energy?
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Undergrad Entanglement, Mixed or Pure State?
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Undergrad Reversing a series of polarizers
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Undergrad Cyclic rotation of the cross product involving derivation
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High School What is actually spinning in quantum spin?
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Undergrad A Question on Spinors in a High school textbook
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