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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 On computing quantum waves exactly from classical action
Undergrad Wave packet conceptual question
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Undergrad Faster then the speed of light
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Graduate What is the solution for the quantum harmonic oscillator formula for nucleons?
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Graduate Off the mass shell and external fields
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Graduate Entanglement and the double slit experiment
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Graduate The Borderworld between Quantum and Classical Physics
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High School Can uncertainties become smaller in certain cases?
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Graduate Particle & Anti-Particle Question
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Graduate Spin Conservation in Beta Decay of 22Na: Explained
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Undergrad Particle or Virtual Particle: What's the Difference?
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Graduate What Do Feynman Diagrams Reveal About Time Reversibility?
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Graduate Double Slit Experiment: Accounting for Other Particle Interactions
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Graduate Refraction due to attractive potential
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Graduate The necessity of the 2nd quantization?
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Graduate Bound states for a half harmonic oscillator
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Graduate Double-slit experiment - a couple of questions
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Graduate Dimension of Hilbert Space in Quantum Mechanics
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Graduate Dimensions and the Generating Functional
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Graduate Seven Questions for Quantum Physicists
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Graduate What is the Controversy Surrounding Retrocausality?
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Graduate Can Noncommutative Operators Be Integrated in Quantum Mechanics?
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Graduate Check If Operator Is Hermitian: Real Eigenvalue Test
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Graduate How to get QFT operator expectation values?
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Graduate Variational principle convergence
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Graduate Is light an electromagnetic radiation. If so< then isn't it casued by
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Graduate E=1/n^2 (-13.6eV) for other one-electron atoms –ionized helium (Z=2),
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Graduate Is Radiative Loss Accounted for in the Usual Treatment of Compton Scattering?
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Graduate Why Must Potential Energy V(x) Be Real in the Schrödinger Equation?
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Graduate Understanding the Klein Gordon Lagrangian and Calculation Rules with Gradients
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Undergrad Difference between ionization energy and photoelectric effect?
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Graduate On General Measure of Entanglement
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Graduate Heisenberg Uncertainty Principal with regards to electron orbits
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Graduate Purely imaginary bound state wave functions?
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Graduate How to calculate the many-body wavefunction
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Graduate HELP Can you find an electron in the exact middle of an S orbital?
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Graduate Understanding Light: Questions & Answers
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Graduate Fermi's Golden Rule and Density of States
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Graduate How does the delta function relate to the momentum operator in Dirac notation?
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Graduate Basic QM question: Why do we describe free particles using Aexp(ikx) ?
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Graduate Coupled quantum harmonic oscillators
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Graduate Is Wave-Particle Duality of Light a Misleading Concept?
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High School What part of the atom creates light?
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Undergrad Can Antiparticles be Visualized in Particle Detectors?
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Graduate Could we do QM without time evolution ?
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Graduate Canonical quantization with constraints
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Graduate Could Hidden Dimensions Explain the Twin-Slit Experiment?
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Undergrad Unraveling the Mystery of [Topic]: Implications of [Effect]
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Graduate Verifying a simple QFT derivation in Peskin's
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Graduate Normalizing the Schrödinger Equation
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Graduate PBS Entanglement: Implications & Uses
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Graduate Coincidence and Single Rate detection in Quantum Eraser experiments
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Graduate Gravity Propagation Experiment.
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Graduate Is Frequency a Fundamental Property of Signals or a Mathematical Construct?
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Undergrad Where can I start learning about quantum physics?
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Graduate Proof of a commutator algebra exp(A)exp(B)=exp(B)exp(A)exp([A,B])
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Graduate Equating the uncertainty relations?
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Graduate Proof that the eigenfunctions of a self-adjoint operator form a complete set.
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Graduate Can Non-Commutative Geometry Redefine Our Understanding of Phase Space?
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Graduate Relativistic Quantum Mechanics
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Graduate Can Two Photons Co-Orbit Stably Through Mutual Energy Attraction?
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Graduate (1/2,1/2) representation and photon
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Graduate Ground state energy of hydrogen atom
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Graduate Spread fo wavefunctions - filling the universe?
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Graduate Questions on Feynman's view on Double slit experiment
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Graduate What is the Pauli-Lubanski Pseudo-Vector and How Can its Invariance be Proven?
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Graduate Finding Simplicity in Summation Expressions
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Graduate Why do we describe electron wave functions in 3n-dimensional phase space?
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Graduate Exploring Imaginary Shifts in QFT: A Necessary Tool for Convergence?
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Graduate Simple QM Question: Eigenfunctions and Eigenvalues
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Graduate Exclusion principle in quantum gasses
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Undergrad Differing formulae for power emission
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Graduate Eigen function, eigen value, eigen vector
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Graduate Schrodinger Equation and Energy Quantization
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Graduate Question on Time Reversal and Degeneracy
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Undergrad Electron interference in double-slit experiment
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Graduate Can a Pulse Be Shorter Than One Wavelength?
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Graduate Transpose of Grassmanian variables
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Graduate QED Lagrangian lead to self-interaction?
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Graduate Antimatter from time-traveling electrons
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Graduate Coexistence of QT and Relativity
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Graduate Understanding the D^{l}(\theta) Representation of 3D Rotations
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Graduate Why is the helicity of a neutrino unchanged by the weak interaction?
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Graduate Numerical solution of Schrodinger equation
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Graduate Wave collapse vs. Friis transmission equation
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Graduate What Is the Significance of Electron Spin in Quantum Mechanics?
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Graduate Quantum Optics: Fock State and Its Meaning for Light
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Graduate Delta function of a function with multiple zeros
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Graduate Applying Riemann-Hilbert Space Curvature to Quantum Mechanics
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Graduate Can Pinholes Alter Photon Path Deduction in Quantum Mechanics Experiments?
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Graduate Find Min Copies Needed for Certainty of Permuted Qubits w/ General State
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Graduate Current Research in QCD: Areas, Problems & Info
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Graduate Come One, Come All, and Cast Your Vote
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Graduate Time delay for evanescent wave to spread (photon tunnelling)
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Graduate Double slit experiment - QM or wave?
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Graduate Changing the spin of a Quantum particle
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Graduate Relation between potential and bound states in Schrodinger equation.
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Graduate How does Wien's Scaling Law unify experimental data in blackbody radiation?
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Graduate Goldstone bosons 1st order phase transition
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Graduate Quantum Data:Theoretical Requirements
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Undergrad Effect before Cause: Is it possible?
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