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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 Question about discussions around quantum interpretations
Undergrad Degenerated perturbation theory
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Undergrad von Neumann Measurement Scheme
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Graduate Questions about scale dependence and renormalization schemes
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Undergrad What is the meaning of "same direction" for spin measurement?
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Graduate Regarding Nucleon Penetration into stationary plasma cloud
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Undergrad Are certain combinations of quantum numbers (basis vectors) forbidden?
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Graduate Comparing Information Loss: Time Dilation vs. Decoherence
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Undergrad How to Show \(\psi_{i}\ket{\xi} = \xi_{i}\ket{\xi}\)?
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Undergrad Will an electron release energy when it is added into an atom?
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Graduate Is delayed choice remote entanglement of photons derived from TDSE?
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Graduate Hard-Core Boson Model in K space
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Undergrad Evaluating Taylor Series at the Mid-Point
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Undergrad Why is m_j not a good quantum number in strong-field Zeeman effect?
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High School Can energy be stored in a single particle indefinitely?
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Graduate Link between Kraus operators and PVMs
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Undergrad Matrix elements of Hamiltonian include Dirac delta term
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High School Could we “cheat” and send a message back in time with a measurement?
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High School What I don't quite get about entanglement...
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High School What does it mean for a glass bead to be in a quantum state?
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Insights Schrödinger’s Cat and the Qbit
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Undergrad Derivation of "polarization drift" in a plasma
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Undergrad Valid to use <1/r3> to get spin-orbit correction to H? (perturbation)
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Undergrad Measuring Second-Order Correlation Function with Start and Stop Signal
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Graduate Do entanglement networks encode a unique, local historical record?
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High School Transferring information faster than the speed of light
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Undergrad Field Operator for Edge States
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Graduate Can humans really create the quantum computer they expected?
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Undergrad Tunneling with Gaussian Wave Packet
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Undergrad A measured spin is still a Qbit
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Undergrad Is Single Slit Diffraction Explained by the Heisenberg Uncertainty Principle?
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Undergrad Quantum Eraser Experiment at home
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Undergrad Single slit diffraction and the HUP
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Undergrad Breaking the Light Speed Barrier?
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Undergrad The photoelectric effect: What frequency does υₛ refer to in the work function?
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Graduate Interpreting the energy density of QFT vacuum states
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Undergrad Understanding the dynamics of a perturbed quantum harmonic oscillator
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High School Heisenberg's indeterminacy principle with non-point particles ?
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Undergrad Different Approaches to the Time Dependent Variational Principle
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High School Question about Bell's inequalities and 3-particle entanglement
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Undergrad Finite potential well transmission coefficient
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Undergrad Testing superposition of spacetime curvature
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Undergrad [QFT-Schwartz Page. 256] Violation of operator exponentiation rule ?
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High School Quantum teleportation of usable information
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Graduate What is the meaning of "Amplitude of Detection" in A. Zee's QFT book?
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Undergrad Motivation behind the Operator-Formalism in QM
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Undergrad Color charge is not scalar -- do their components have dimensions?
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Undergrad The Dirac equation as a linear tensor equation for one component
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Undergrad Generalized Eigenvalues of Pauli Matrices
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Undergrad Eigenstates of particle with 1/2 spin (qbit)
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Undergrad If the gravitational constant had a different value
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Graduate How produce twin photons in practice?
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Undergrad What are anomalies in quantum field theory?
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Undergrad Qubits state calculation
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Undergrad Quantum mechanics formalisms and conservation of energy
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Undergrad When and why can ∂p/∂t=0 in position space?
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Undergrad EPR in Bohm formulation
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Undergrad How to enter measurement results into Bell inequality?
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Undergrad Why doesn't gravity cause double-slit decoherence?
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High School Could energy be destroyed during particle annihilation?
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Undergrad Bell tests: Changing detector settings "just before photon arrives"
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Graduate X measurement modeled in non-separable Hilbert space
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Undergrad Klein-Gordon Equation with boundary conditions
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Graduate Testing antimatter fundamentals
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Undergrad Conservation of energy and wave function collapse
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Undergrad How to "derive" momentum operator in position basis using STE?
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Undergrad Freqeuncy of Matter Waves Approaches Infinity as Velocity Approaches c
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Undergrad Material Waves and Wave Functions
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High School How do quantum phenomena affect macroscopic phenomena?
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Graduate Mixed quantum state of the Bose-Einstein distribution
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Undergrad Quantum particle's state in momentum eigenfunctions basis
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High School Using Interference Principles to Increase the Efficiency of Solar Panels
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Undergrad Is quantum interference an instantaneous consequence of superposition ?
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Graduate How to know the number of Feynman diagrams for a given order?
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Undergrad Completeness of Eigenfunctions of Hermitian Operators
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Undergrad Does gravity cause quantum decoherence?
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Graduate What is decoherence?
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Undergrad Original HBT experiment with mercury isotope lamp
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Graduate Spontaneous emission and coherence
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Undergrad How is spin exchange interaction generalised to many electrons?
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Undergrad Electrons keeping dynamical quantum fluctuations?
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Undergrad Observing observables of an entity
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High School Does a photon's energy change as it refracts?
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Undergrad Does entanglement always conserve something?
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Undergrad Qbit pure vs mixed state space
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Graduate A particle locked inside an arrangement of Dirac delta potentials
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Undergrad Wave packet interpretation
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Undergrad Representation of Spin 1/2 quantum state
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Undergrad Energy and momentum of a photon in a medium
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Undergrad Radiation from solid black bodies
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Undergrad How many spots will a rotating Stern-Gerlach apparatus produce?
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High School Can objects in nature store light information on the quantum level?
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Undergrad Your Favorite Feynman Diagram?
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Undergrad Quantum Hall Effect and Hall Voltage
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Graduate QFT Superposition of Final States
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Undergrad Subtractive mode intensity interferometry?
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Undergrad Electron counterpart of pseudothermal light source for quantum experiments
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High School Electron's movement after getting hit by a photon that bounces at 90 degrees
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High School Origins of the no-cloning theorem
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Undergrad Feedback on Educational Script: What's a particle in QFT?
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Undergrad Are Superposition, the Uncertainty Principle, and Duality the same?
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