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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

A question about quantum entanglement
High School What is Quantum Statistical Mechanics?
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Undergrad Why are the gamma-matrices invariant?
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High School So the holographic principle doesn't have much evidence?
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Undergrad Why is there only odd eigenfunctions for a 1/2 harmonic oscillator
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High School Interference patterns of electrons vs. photons
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High School Electrons and ions -- how long can they exist apart?
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Undergrad Quantum Coherence: Macroscopic Superpositions Explained
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High School Does quantum mechanics explain why subatomic particles behave the way they do?
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High School Why do the 4 forces have the strength that they do?
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Undergrad Understanding Spin-2 Bosons & Graviton Theory of Gravity
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Undergrad Why electron enters the lowest potential possible?
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Undergrad Mapping between rotations and operations: sign & handedness
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Graduate Can the Markov chain be used in qubit manipulation?
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Undergrad Energy quantization of the particle in a box
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Graduate Optical Bistability and the Jaynes-Cummings Model
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Undergrad A special relativity explanation for the Lorentz Force?
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Graduate Liouville Master Equation for an Open Quantum System
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Undergrad Probability density and kinetic
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Undergrad Does the probability collapse theory of QM imply backward in time
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Undergrad Confused about slater determinant for excited states
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High School How Do Virtual Photons Mediate Forces in Quantum Electrodynamics?
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Undergrad Spin up and Spin down states can be written as .... why?
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Undergrad Can interactions happen at less than the Planck Time?
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Undergrad Normalizing Constant 3D Infinite Well
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Undergrad Virtual particles in Feynman diagrams and not
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Undergrad Expression for Uncertainty of Arbitrary Operator
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Undergrad Why is there a -1/2 in the Lagrangian density for ω mesons?
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High School Do probabilities for entangled polarization states add up to one?
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Undergrad Postulates for the formal core of quantum mechanics
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Graduate Fermi energy Ef changes with applied electric field?
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Graduate What is a "quantum potential" ?
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Undergrad Wave-particle duality and localization
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High School Faster than light communication via entanglement?
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Undergrad Difference between expectation value and eigenvalue
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Undergrad Understanding Electron Spin: Deep Theoretical Reasons Explained
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High School The sticky elactic in the Bloch sphere
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Undergrad What Is the Descriptive Meaning of \(- \frac{e}{c}\vec A\)?
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Undergrad Spin states for two identical 1/2 particles - Confused :s
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Graduate Quantum Optics Question and Wigner Functions
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Graduate Is Phase Relevant for Uncharged Particles?
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Undergrad Help With Black Board EQ's in a P.A.M. Dirac Lecture
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Undergrad Unraveling the Mystery of Particle Spin Numbering System
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Undergrad How to prove Schrodinger's equation in momentum space?
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High School Do Photons Contribute to the Energy Released in Nuclear Explosions?
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Graduate Euclidean signature and compact gauge group
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Undergrad General Solution of Dirac Delta Potential Well
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High School Does Photon Emission Cause Decoherence?
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Undergrad Why is reflection coefficient defined this way
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High School What takes up the empty space of an atom?
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Graduate Time correlation of an observable in the Schrödinger picture
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Graduate Why use adiabatic evolution instead of cooling?
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High School When are particles in a quantum state?
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Graduate What's meant by D dimensional gas?
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Undergrad Do entangled particles exist in superposition?
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Graduate Steane Code, Distance 3-Stabilizer-Codes
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Undergrad How Do Photons Behave When They Intersect?
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Undergrad Teleportation isn't exclusively quantum....?
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Undergrad The barrier length in quantum tunneling
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Graduate Water molecule first hyperpolarizability
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Graduate Dispersive Regime in Jaynes-Cummings Model
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Undergrad Thermal radiation and light pump
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Undergrad Software Designs Quantum Experiments
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Undergrad How can I write a normalized spin superposition in a simplified form?
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Undergrad Weinberg Lectures on QM (2013 ed.), Equation 6.5.5
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Graduate What is the relationship between the Casimir force and the strong nuclear force?
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High School Is Solving Schrodinger's Equation the Best Way to Approach Quantum Mechanics?
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Undergrad Transmission coefficient limit
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Undergrad What are magnetic and electric fields?
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Undergrad Can an Electron Absorb a Photon if the Next Energy Level is Full?
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Undergrad Quantum field and mediating particles
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Graduate Tracks in particle detectors and quantum paths
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Graduate Computation time for adiabatic evolution
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Graduate How gravity affects wave function collapse
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Undergrad Does Adding Detector D5 After BSa Affect the Interference Pattern at D0?
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High School The Lightness of Being: Frank Wilczek's Lay Book
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High School What is the connection between unitarity and thermodynamics?
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Undergrad Can subspaces be used to determine probabilities in quantum mechanics?
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Undergrad Particles from a thermal source
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Undergrad Are the 2nd and 3rd axioms of QM incompatible?
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Undergrad QKD Question: Alice & Bob Detector Cross-Checking
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High School Quantum Interactions happen where?
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Undergrad Are virtual particles real or just math filler
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Graduate Is non-locality a necessary consequence of the Bell theorem?
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High School Bell's Inequality && polarisation for the layman
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Graduate How does negative chemical potential influence fugacity in an Ideal Bose Gas?
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Undergrad Difference between atomic behavior in QM and classical physics
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Undergrad Spin Offsetting Charge: How Electrons Balance Out
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Undergrad Infinite Sq. Well sinusoidal gen. soln question
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High School Proving entanglement using polarisation & Bell's Inequality
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Undergrad Are physical constants subject to the uncertainty principle?
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Graduate Is measurement a yes/no process?
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Undergrad Finite vs. Infinite Square Well potential base question
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High School Decoherence and the Dust Particle
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High School What is the Hamiltonian operator for a decaying Carbon-14 atom?
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Undergrad Delta fuction potential general solution
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Undergrad Representation between State Vector & Wave Function
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High School How Does the Double Slit Experiment Show Both Particle and Wave Behaviors?
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Undergrad How exactly does squaring operators (e.g. <p^2> work?
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Graduate Can decoherence be formulated in the Heisenberg picture?
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Graduate How to change density of states to eV
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