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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 Understanding Barandes' microscopic theory of causality
Graduate Why Do We Need Fields as Annihilation & Creation Operators?
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Undergrad Is it possible to slow down/stop the light?
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Graduate How Does Quantum Entanglement Affect Electron Spin Measurements?
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Graduate Field Theory Partition Function
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Graduate How does the Klein-Gordon Lagrangian relate to the equations of motion?
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Graduate How to solve for allowed energies with the WKB approximation?
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Graduate A question about optical theorem
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Graduate A modified double slit screen scenario- what would happen?
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Graduate The Quasi Classical Approximation(Landau Lifshitz)
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Graduate Hankel Functions: Solutions to Cylindrical Wave Equation
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Graduate Relation between mass and wave function
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Graduate A single atom in a cold, closed, vacuum system.
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Graduate How Do We Correctly Calculate the Distribution of Bosons Among Energy Levels?
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Graduate Double Harmonic Approximation IR intensties
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Graduate Trying to wrap my brain around entanglement-superposition
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Graduate Need help seeing that phase-space area is action
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Graduate Field and conjugate independent?
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Graduate Does gravity break down in the big bang?
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Graduate Acceleration operator and the electron in a hydrogen atom
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Graduate Wavepacket incident on a potential step
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Graduate Existence of Pure Quantum States
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Graduate Representation of linear operator using series ?
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Graduate Number of possible wavefunctions only countably infinite?
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Graduate Is dBB reproducing quantum results ?
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Graduate Pulling out partial derivatives?
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Graduate Uncertainty Relation between Lx and Ly
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Graduate Can Singlets be Prepared with a Preferred Direction?
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Graduate Quantum teleportation and the density matrix
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Undergrad Photocurrent and frequency of incident light
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Graduate Is Squaring the Momentum Operator the Same as Applying it Twice?
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Graduate Transforming Representations of SO(3) to Act on Vectors?
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Graduate What are raising & lowering operators
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Graduate Matrix exponentiation using gsl library (Computational Quantum Mechanics)
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Graduate Expectation value at ground state
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Graduate Why doesn't one-photon-irreducible function have any pole at q^2=0?
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Graduate What is the minimum observer energy?
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Undergrad Question about magnetic field generation by stream of electron
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Graduate Stability of atoms in QM / QED
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Graduate Time independant perturbation problem
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Graduate Molecular material ground state
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Graduate Parametrization of uniformly distributed n dimensional states
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Graduate Are Bose Eistein Condensates Classical Objects
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Graduate What Misconceptions Exist in What The Bleep Do We Know?
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Graduate Collection of foundational papers?
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Undergrad The strength of electromagnetism in an atom?
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Graduate Time independant perturbation - Difficulty understanding derivation
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Graduate At what point does gravity become incompatible with QM?
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Graduate Probability of finding electron.
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Graduate Spin singlets and the Bell states
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Graduate Finite Hilbert Space v.s Infinite Hilbert Space in Perturbation Theory
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Graduate Initial wave function for an electron in a magnetic field
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Graduate What makes virtual particles separate and come together?
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Graduate Does photon exist without velocity c ?
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Graduate HUP and good quantum numbers that commute
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Undergrad Do electrons need specific energies to excite electrons
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Graduate How can the expression for orthonormal states be simplified?
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Graduate Accurate equations vs. accurate models in QM
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Graduate Dr. Plato A Lucien Hardy called and
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Graduate How can a ground state of free particles have entanglement?
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Graduate Tattoo featuring quantum physics
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Graduate Does metronome synchronization have anything/nothing to do with QM/QE?
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Graduate What is the correlation between photon events in space and time?
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Graduate Photographing Atoms: Closest and Best Photos of Molecules
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Graduate How do we know that wave f. is the eigenfunction of an operator H?
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Graduate Is a static EM field made of photons? Do they move at c?
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High School Understanding Newton's Ring Experiment & Why Rings are Circular
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Graduate Mass of a permanent magnet levitating a superconductor?
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Graduate Is the wave function, an unreal tool, to partially model a real interaction?
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Graduate Peskin Schroeder page 30 eq 2.54
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Graduate Problem understanding Wigner's classification
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Graduate Other ways to create an interference pattern?
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Graduate Total momentum operator in peskin/schroeder
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Graduate Difficulties in understanding Brownian motion.?
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Graduate An eigenstates, eigenvectors and eigenvalues question
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Graduate Particle in magnetic field, classical and quantum view
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Graduate PBR Theorem: Abandon Quest for Ontic Models of QM?
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Graduate Path Integrals Harmonic Oscillator
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Graduate What is the energy-time uncertainty relationship in quantum mechanics?
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Graduate Feynman rules from Yang-Mills lagrangian
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Graduate Proper form of schrodinger's equation?
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Graduate The use of different bases in QFT
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Graduate Spin-Orbit Coupling: A Bohr-Orbital Model?
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Graduate Equivalence of differential operator terms in action
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Graduate Sakurai page 196: Orbital angular momentum as rotation generator
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Graduate Bra-ket notation and qubit issue.
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Graduate Does quantization mean there are only so many colors?
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Graduate Any Conceptual Underpinning for Partial Reflection of Light (QED)
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Graduate Electron LOSING energy to the quantum vacuum?
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Graduate Gauge transformation of Yang-Mills field strength
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Graduate From statistical to ontological: uncertainty principle
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Graduate Hydrogen atom. Simple question I think.
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Graduate Argument for quantum indeterminism
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Graduate Hawking Radiation and Shrinking Black Holes
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Graduate Is the wigner D function a representation of SO(3)?
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Graduate Proof for commutator $[\hat{H},\hat{a}] = - \hbar \omega \hat{a}
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Graduate Photon Polarization: Linear vs Circular & Time-Dependent States
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Graduate Where did they come from and when?
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Graduate Exploring the Fundamental Postulates of QM: Are They Truly Ad-Hoc and Strange?
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Undergrad Determining the Weight of a simple string
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Graduate Quantum internet running at Los Alamos National Labs
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