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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

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