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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
I Correlation Matrix of Quadratic Hamiltonian
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I When do classical mechanics and electromagnetics stop working?
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A Problem evaluating an anticommutator in supersymmetric quantum mechanics
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I Photoelectric effect and Saturation Current
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I What makes up the bare mass of elementary particles?
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I Question about the Photoelectric Effect and the Work Function of a Metal
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I Looking for resources to learn bra-ket notation
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I Looking For Help Understanding Bell's Theorem, Hidden Variables & QM
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A First Order in Time Derivatives + Phase Space
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B Definition of a random variable in quantum mechanics?
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I Hall Conductivity and Rotational Invariance
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A Are there any hypercomplex time values?
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I Generic Form of Hermitian Matrix
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I What Causes Ambiguity in Wick Rotation for Time-Ordered Correlators?
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B Can we say a photon doesn't exist until the wavefunction collapses?
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I Boundary conditions for the momentum space SE
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A Wigner Weisskopf method for time varying Perturbation
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I Why is entanglement necessary in a quantum computer?
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I How does the quantum of action cause indeterminism?
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I Measurements and uncertainty principle
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I In the delayed-choice quantum eraser, why is a stepper motor used?
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B Entangled quants inside a particle accelarator
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I How did Sommerfeld arrive at his quantum condition?
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I Why is Photon Energy Quantized in Terms of Sine Wave Frequency?
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I Force of an Electron on a Potential Wall?
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I Understanding the Dirac Delta Identity to Fetter and Walecka's Formula
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I Klein-Gordon equation and continuity equation
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I Problem with the polarization of entangled photons
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I Can AIs act as conscious observers?
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I Non-wave solution to wave equation and virtual particles
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I Where does the energy come from?
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I What Is the Smallest Change Detected by a Multiport Interferometer?
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I Trouble with Product of Green's Functions
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I Why do exponential functions occur outside of finite walls?
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A "Nonclassical Advantage in Metrology" paper
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I Mass Dimension of Fields (Momentum space)
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I Need help understanding the first single attosecond pulse measurement
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I Can an atom absorb a photon, yet its total kinetic energy is decreased?
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I Lindbladian Jump Operators Condition
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A Phase difference between electric and magnetic dipole moment
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I How Is the Mixed State Density Matrix Represented in Quantum Computing?
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I Density Matrix of Multiple Qubits
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I Does the Photon Play a Crucial Role in Quantum Mechanics?
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B What is causing destructive interference in double slit experiment?
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A Is entanglement also for time-like intervals?
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I Is entanglement a consequence of the singularity of the early universe?
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I Looking for resources about tunneling effect on two delta functional barriers
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I How Is the Integral from (3-22) to (3-23) Calculated in Quantum Mechanics?
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I Confusion about Scattering in Quantum Electrodynamics
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I About time-independent non-degenerate perturbation expansion
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I Magnetic flux through a superconducting ring
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B Frequency of an EM wave in Classical and Quantum Physics
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A How to draw the angles of the CKM matrix?
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B Quantum Nonlocality or Non Counterfactual Definiteness?
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B What is the size of a VHF photon?
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B Why doesn't the electron "wave" collapse at the double-slit?
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I Quantum behavior experiment flawed?
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I Is it possible for a BBO crystal to produce an interference pattern?
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I Measurement and Thermal Effects Similar?
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I Recommendations for learning renormalization?
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A Creation and annihilation operator
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A Solving renormalization group equation in QFT
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B Is Quantum Mechanics necessary for understanding electromagnetic phenomena?
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I Energies of bound state for delta function potential
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B Searching for Quantum Mechanics Lecture on Delayed Choice Experiment
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I How to distinguish between diagonal vs horizontal/vertical polarization?
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I Point of Demarcation between Quantum and Classical Behavior
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A Are irreversible processes absolutely irreversible, even given infinite time?
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I Is Calcite a parallel to the Stern-Gerlach experiment?
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A Renormalized vertex functions in terms of bare ones
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I How does one time-evolve a quantum state with its kernel function?
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A Quantization of real Klein-Gordon field (sign issues)
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A Anti-commutation relation for quantized fields
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I Black Hole Fire Walls, Brick Walls, and the Casimir Effect
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I Impossible probability between theoretical possibility and reality
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B Quantum Entanglement in Practice
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B Does decoherence prevent 100% of quantum tunneling of macro object?
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I If we wait infinitely long, will macroscopic objects undergo quantum tunneling?
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I Can Electrons or Photons Exceed Light Speed?
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I Questions on the classical interpretation of (normal) Zeeman effect
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B Wavefunction and Lorentz Invariance
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B Preference for the notation used for the wave function?
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I In what chapter do Mehra and Rechenberg discuss Pauli matrices?
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I Could a quantum computer simulate any system based on different types of logic?
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A Lagrangian in the Path Integral
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I Question about Stern-Gerlach experiment
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I Is my interpretation of the g-factor correct?
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B Direct sum decomposition into orthogonal subspaces
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I Who was the first to make a Stern-Gerlach experiment with two magnets?
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I Normalizing factor of wave function
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I What Is the Difference Between Loss and Cost Functions in Quantum Computing?
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I Electrical Analog of Aharonov-Bohm Effect
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I Parallel transport and entanglement
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I When was the formula for the Stern-Gerlach experiment found?
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B Help interpret quantum states of molecular rotation and torsion
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A SU(2) and SU(3) representations to describe spin states
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I How to get the energy eigenvalue of the Hamiltonian: H0+λp/m ?
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I What do the authors of the paper mean here exactly by path integral?
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B Virtual particles and Heisenberg
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I Solving the Schrodinger Equation for a particle being measured
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