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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 Does an electron's position collapse when measuring g factor?
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Undergrad If an electron isn't fundamental, what fields are it made of
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Undergrad Extended hamiltonian operator for the Hydrogen atom
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Undergrad Interpreting "momentum" in WKB approximation
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High School Particle or Wave? Duality Explained
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Undergrad Elementary particle transformations/couplings
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High School Time & Superposition: Rate of Observation
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Graduate Deriving the Kubo Formula for Viscosity in Thermal Relativistic QFT
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Undergrad What is (rest) mass for a particle?
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High School Tachyons: Bosons, Force Particles, Messenger Particles?
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Undergrad Defining exchange statistics of anyons in terms of Berry phase
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High School What’s the difference between TIQM and Time Symmetric QM? (a
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Undergrad Physical significance of a.σ in expectation -E(a.σ b.σ)?
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Undergrad Position representation of the state of the system
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Graduate Deriving matrix element from Lagrangian
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Graduate Is the Effective Potential the same Quantum Potential?
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Undergrad What is the physical meaning "without spin-orbit interaction
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Undergrad Name for electron's trajectory outside of the orbit?
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Undergrad First order perturbation derivation
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High School What is the Quantum of Sound in Gases and Air
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Undergrad Calculating Hamiltonian matrix elements in a chaotic system
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Undergrad How is the order of events reversed in 1 trillion frames per second videos?
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Undergrad Why Don't L2 and Ly Commute When L2 and Lx Do?
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High School Entanglement measurements timing
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Undergrad I say that this experiment confirms Schrodinger's Cat....
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Graduate Are two models with the same S matrix directly related by their parameters?
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Undergrad Fields: Unobservable, Yet Physical?
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Undergrad Can quantum Zeno effect be applied to macroscopic systems?
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Undergrad How is Graphene's Hamiltonian rotationally invariant?
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High School Untappable quantum communications?
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Undergrad Is the spin linked to the third quantum number ?
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Undergrad Coherent Photons: Uncertainty and Locality
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Undergrad Can the spin states of a spin1 particle be modeled?
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Undergrad Is the particle in a 1-D infinite well doubly degenerate?
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Undergrad How can an atom change from ground to excited state?
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Undergrad Entanglement, magnetic field and conservation law
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High School Dirac Equation: Combining Quantum Mechanics and Special Relativity
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Graduate Scale invariant inverse square potential
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Undergrad Maxwell's Equation's From Klein Gordon
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Undergrad How does nucleation work in cosmology?
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Undergrad QFT operators time/space asymmetry?
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High School Quantum gravity and worldlines
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High School Wave particle duality - my visual/mental image
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Undergrad What Is Entanglement? Definition & Examples
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Graduate Understanding spin precession in a magnetic field
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High School Can You Really Observe a Wave Function Without Collapsing It?
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Undergrad Position Operator Action on Wave Function: $\psi(x)$
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Undergrad Orthogonality of Momentum Eigenstates: Why is ##\int e^{-ix}e^{2ix}dx=0##?
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Photon angular momentum and magnetic quantum number selection rules
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Undergrad Matrix Mechanics and non-linear least squares analogy?
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Undergrad Normalizing a Discrete Sum: Is the Wavefunction Fully Normalized?
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Undergrad What Are the Key Experiments and Applications of Momentum Entanglement?
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Undergrad Thinking about the static electric field in terms of QFT
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Undergrad Understanding Scalar Quantity in Basic Bra-Ket Arithmetic
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Undergrad Lamb shift and the QFT vacuum....
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Undergrad Given a Hamiltonian, finding the energy levels
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Undergrad Cgs or SI in quantum field theory?
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High School Double slit probability question
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Undergrad Is E<mc^2 Critical for the Klein Paradox in Potential Step Analysis?
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Can entangled photons be used to explore black holes?
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Undergrad The spin of the photon -- a weird experiment with a laser
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Graduate Deriving the Lagrangian from the Hamiltonian operator
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Undergrad What is the name for the "stuff" at heart of black hole?
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High School Does a particle have a conscience of its own?
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Graduate Description of imaging through lens using quantized EM field
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High School Exercises total angular momentum and spin (more particles systems)
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Undergrad Vacuum cutoff, normal ordering, Planck scale and 10^120....
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Undergrad A question from reading Feynman's book on QED
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Undergrad Deriving Spherical Harmonics from Sakurai's Book
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Undergrad Position and Momentum are random variables in QM?
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Undergrad Article on Quantum Bootstrapping and Geometric Theory Space
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High School Wavelength of Particles Moving at 1m/s
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Undergrad What Do Elements in the Quantum Probability Formula <Ψ|P|Ψ> Represent?
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Undergrad Does a Delta Potential Barrier Allow for Bound Solutions?
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Undergrad What is Photon Phase? Explaining Confusions
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Undergrad Proof that parity operator is Hermitian in 3-D
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High School Can Quantum Linked Signals Be Observed in Real-Time in Space?
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Undergrad Conservation of energy in quantum measurement
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Graduate Why the inside of a box is coherent
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Undergrad Two particles: Entangled State vs Non interacting State
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Mathematical formulation of local non-realism
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High School Quantum Tunneling and Heat Distribution in Laser Cavities?
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High School Funneling Light to an Electron: A Size Challenge
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Undergrad What is the speed of decoherence and its predictions for coherent systems?
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Undergrad Do I have the correct form for the number of states, the |n>?
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Undergrad About general solutions to Schrodinger equation
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Undergrad Is Light a Particle or a Wave in Different Contexts?
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High School Rest Energy - Kinetic Energy
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Undergrad Extending an infinitesimal operator
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Graduate Is the electron a fundamental particle?
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Undergrad Understanding the Role of Spinors in Quantum Mechanics
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Undergrad Does the Uncertainty Principle restrict a particle's path?
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Undergrad Built an HBT Interferometer but don't get the physics
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Undergrad Which ψ do I use for the Expectation Value ?
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Undergrad How to synthesize quantum circuits?
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Undergrad Density matrix on a diagonal by blocks Hamiltonian.
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Undergrad Difference between statistical and dynamical properties
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Undergrad Ionic bonding from a quantum mechanics point of view
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Undergrad Eigenvalues of Fermionic field operator
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High School What is the amplitude of light?
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