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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

Graduate Universal quantum physics
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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Graduate Harmonic Oscillator & Schrodinger
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Graduate Easy (I think) quantum non-locality question for the experts
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Graduate Understanding the Main Assumption of Quantum Physics
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Undergrad How Do Electrons Create an Interference Pattern in the Double Slit Experiment?
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Graduate Obama has chosen his VP, the universe has decohered/collapsed
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Graduate Continuing entanglement after first measurement
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Undergrad Understanding Photons as Waves: Interference and Behavior
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Graduate What is a positive definite Hamiltonian?
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Graduate Conservation of momentum and how to entangle
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Graduate References for quantum chromodynamics
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Undergrad Quantizing Photons: Understanding the Nature of Light and Energy
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Graduate Kinetic lagrangian for non-abelian gauge theories
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Graduate How to convert m meter into recoils
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Graduate Can Quantum Entanglement Enable Superluminal Communication?
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Graduate Spontaneous Breaking Local Gauge Symmetry: Hamiltonian Formalism?
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Graduate Best possible test which differentiates qubits
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Graduate Photon Experiment: What Will I See on Wall B?
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Graduate Is the Correct Delta Function for a QED Vertex \(\delta(p+q-k)\)?
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Graduate Distribution of speeds in a molecular beam.
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Graduate Uncollapsing a wavefunction (demo in low temp cond matter lab)
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Undergrad Why Does the Photoelectric Effect Eject Electrons from the Innermost Shell?
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Graduate Inserting Feynman Slash Notation in Mathematica
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Graduate Broken Symmetries (Weinberg p215)
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Graduate What is the Dirac Equation and How Did it Predict the Existence of Anti-Matter?
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Graduate Mean Field Indices in D>4: Modern Proofs
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Graduate How Does the Euclidean Dirac Operator Connect Quantum Field Theory and Geometry?
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Graduate Problem understanding a statement in Bose Statistics
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Graduate Quantum mechanics vs general relativity
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Graduate How Does Dimensional Regularization Simplify Integrals in Quantum Field Theory?
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Graduate What happens to qubits if Swap Test fails?
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Graduate Schrodinger's Equation validity for relativistic particles
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Graduate Klein-Gordan Eqn: Understanding Negative Probabilities
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Graduate Diagramatic perturbative expansion of QCD
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