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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
High School Has the existence of Hilbert Space been proven 100%?
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Undergrad Understanding Spinor Rotations
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Undergrad Tensor Product in QM: 1D vs 3D Hilbert Spaces
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High School Bohr vs Einstein: is the Moon there when we are not looking?
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Undergrad Weinberg LN in QM (Section 3.5): Momentum operator
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High School Photon and half-silvered mirror
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High School If all particles were different sizes, would the speed of light stay the same
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Undergrad Why do we require locality in quantum field theory?
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High School Looking for Wilhelm Wien's original paper
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Graduate Single qubit coherence time record
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High School Photoelectric Effect under cutoff frequency
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Undergrad Question regarding the Dirac delta function
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Graduate Fun with Deltas and ##L^2##: Physicists vs Mathematicians
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Graduate Why are low pressure gas discharge lamps thermal sources?
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Graduate Is Rest Mass a subjective quantity?
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High School What's an electron doing between interactions?
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High School Thought experiment violates Heisenberg? (of course not)
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High School Uncovering the Truth: Non-Dualistic Particles Revealed
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Undergrad What specific momentum should be used in the matter wave?
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Undergrad Photon energies from Planck-Einstein: confirmed in practice?
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Undergrad Understanding Bra-Ket Notation in Quantum Mechanics
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Undergrad Direction of magnetic field measured by 2 coherent electrons
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Undergrad Feynman Lecture Vol III Ch. 8 Question -- Heisenberg matrix picture
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Undergrad Beta Radiation: Quark Transformation & Charge Change
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Undergrad Is Ψ2Px an Eigenfunction of L2 or Lz in Quantum Mechanics?
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Undergrad What Is the Tunnel Effect in Time-Independent Quantum Mechanics?
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High School How does entanglement work for spin states?
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Undergrad Why does the kinetic operator depend on a second derivative?
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Undergrad Why is the KE operator negative in QM?
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Undergrad If operators commute then eigenstates are shared
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Undergrad Probability current in positive finite square potential
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High School What is quantum equation of single photon?
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Undergrad Photons on a CCD Vs. the magnetic or electric vector?
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Undergrad Angular momentum ladder operator derivation
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Undergrad How can I confirm Lz=ħ,0,-ħ using operators and eigenfunctions?
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Undergrad Probability distribution plots
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Undergrad How Does Superradiance Enhance Radiation Intensity?
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Undergrad Is the wavefunction a physical quantity?
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Undergrad Transition probability and superposition
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Undergrad Demerits radial distribution functions
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Undergrad Heisenberg Uncertainty Principle & Wave Function
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Graduate Quantum Entanglement Harvesting
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Undergrad When can one clear the operator
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Undergrad Rotational-Vibrational Energy state equation derivation
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Undergrad Width of a stationary wave packet as a function of time
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High School Mixed states V superposition V linear combinations?
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Undergrad Square of absolute value of amplitude for a single photon
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Graduate Integration of Schrodinger equation
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Graduate Hamiltonian and constant potential
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Undergrad Question about Quantum teleportation
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Undergrad Quantum Spin Liquid: New State of Matter Explained
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Graduate Performing Bell State Measurement in Teleportation
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Undergrad Density matrices, pure states and mixed states
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Undergrad What is an electron's orbital angular momentum?
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Undergrad A question about reduced density matrices
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Undergrad Technical question about modern Double Slit w/ one photon
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Undergrad Bound electrons vs. free electrons
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Graduate Is Poincare symmetry the real thing?
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Undergrad Status of Adami's solution to Firewall paradox?
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High School What causes reflection to occur in highly absorptive materials?
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Undergrad The most general state function
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Graduate Is Quantum Determinism Compatible with the Black Hole Information Paradox?
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Undergrad "Light is wave-like and particle-like" --- Why this is wrong?
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Undergrad Non-commuting operators on the same eigenfunctions
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Undergrad Inverse square law and ensembles of photons
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Graduate Resolution in single molecule localisation
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Undergrad Are photons from atomic cascade directly entangled?
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Undergrad Hartree fock derivation problem
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Graduate The Nonlinear Schrödinger Equation
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High School Communication with no latency using quantum entanglement
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Graduate Quantum versus classical computation of the density of state
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High School Question: Can State Only Be Formulated Relating to Observable?
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High School How Does Neutral Pion Decay Conform to Spin Conservation?
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Undergrad Implication of eigenstates that are not normalizable
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Undergrad Why is Planck radiation the most radiation a body can emit?
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Graduate Peskin Shroeder quantum field 7.31 pag 221
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Undergrad Unitary Time Evolution: Explaining Open Quantum Systems
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Graduate Fermis golden rule and transition rates
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Graduate Lorentz invariance of the Heaviside function
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Undergrad Can Monte Carlo Wave Functions Capture Driven and Dissipative Quantum Dynamics?
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Graduate Solution of the classical Klein-Gordon equation
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Graduate Monte Carlo Wavefunction Methods
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Undergrad Mathematics of tensor products in the Bell states
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Undergrad Quantized Energy in micro scales
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Undergrad Electrons orbiting the nucleus: angular momentum
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Graduate Where Can I Find the Published Paper on Bose-Einstein Statistics by Einstein?
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Graduate Canonical Commutation Relations in finite dimensional Hilbert Space?
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Graduate How Do Quantum Dots Differ from Quantum Wells in Quantum Optical Properties?
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High School Where Do Quantum Gravity and Cosomology Fit in Physics?
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Graduate How Does the Presence of Gas Affect Decoherence in a Stern-Gerlach Experiment?
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Undergrad Delayed Choice Quantum Eraser Question
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Undergrad Laser diffraction through single slit
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Undergrad Why is QM (almost) local, with one exception?
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Graduate Effective Dynamics of Open Quantum Systems: Stochastic vs Unitary Models
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Undergrad Does the particle wave duality create unique signatures...
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Undergrad Transition rules for a trapped ion
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Graduate Do entangled particles decay simultaneously?
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Graduate CO2 Laser Beam Folding for 10kw Power Output
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Graduate Misunderstanding Eberhard's paper on FTL communication?
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Undergrad Triplet States and Wave Functions
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