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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
Average Randomness Thought experiment
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Is there a consensus on Bell's Theorem and its implications?
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Role of hermitian and unitary operators in QM
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Can Sending Signals Through Time Help Predict the Future?
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New and have a few initial questions.
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Layman question about quantum theory.
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The Role of Eigenvectors and Eigenvalues in Quantum Mechanics
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Polarization vector in Peskin & Schroeder QFT
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High energy particles and uncertainty
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Combining light beams question
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Which order do you take derivative of delta function?
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Why Does Bell's Calculation Yield a Negative Cosine?
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Interesting New FQXi Contest Essay re: Signal Causality
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Why cant a particle go through one slit but behave as if it went through both?
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Help with the Schrödinger Equation.
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Why do atoms want a full outer shell in quantum mechanics?
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Degenerate states and wavefunction collapse
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Does the Nucleus Have a Wave Function?
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Why do we consider the evolution (usually in time) of a wave function ?
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Why is the Braid Group Infinite?
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Classifying electron orbitals by nodes
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De Sitter Space and Virtual Particles
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Question About Quantum Numbers
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Spin 1/2-Raising and Lowering operators question
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Calculating the frequency of the fundamental vibrational mode
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Quantum Harmonic Oscillator Complete System
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Propagator for inverted harmonic potential.
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Schrodinger's Cat- Cat variations causing loopholes in the paradox?
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How are correlation functions defined for non-uniform operator theories?
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Properties of derivatives of a wavefunction?
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What are the shapes of atomic orbitals
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Dirac Matrix Property? Possible Book mistake?
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What is the Meaning of Expectation and Deviation of an Operator?
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Square integrable functions - Hilbert space and light on Dirac Notation
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Faster than Light Information Sending Solved?
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Can Coherence Be Restored in Quantum Systems?
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How Does Quantum Entanglement Create Spooky Action at a Distance?
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Wave Function Collapse and Bayesian Probabilty
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Spherical Tensor operators for half-integers
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Why do we use Gauge Theories to describe local conservation of charge?
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The Lagrangian formalism of Quantum Field Theory
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Quantum algorithms on Graphs VS Quantum Graphs
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Energy of a Photon: Frequency, Intensity, Momentum
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Matrix operators Dirac notation
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Sanity check: Kitaev's quantum computing book
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How Does the Bogoliubov Transformation Apply in BCS Theory with MFA?
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Difference between a particle and its field
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Dirac notation and conjugate transpose in Sakurai
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Why the photoelectric cross section decreases with the energy of the photon?
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Contextuality and Non-Locality
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Basic question regarding Maxwells distribution
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Relativistic Equation Questions
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Is the universe a fermion or a boson?
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How is the commutator derived through the general form of expectation value?
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Is Degeneracy in Quantum States Equally Probable in Thermodynamic Equilibrium?
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Understanding the Role of Poles in the Propagator for Massive Vector Fields
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Wave Function Collapse: Observers & Probability in Schrodinger's Cat Experiment
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Nature of Time in Physics: A Question
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Does anyone know if the fastest velocity of light is not fastest anymore?
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Bending Radiation: Heat Pumps and Beating Carnot's Law
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The dimensionality of the state space of a quantum system
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What Does Black Light Do to a Blackbody?
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Expanding over R and L polarisations
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Double slit confusion from observed particle dynamics.
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Can Quantum Physics Reveal Higher Dimensions Beyond Our Perception?
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General explaination of standard model/particles in general?
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TIme-independent schrodinger equation
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Measuring Momentum: Is One Measurement Enough?
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Understanding The ever elusive Photon Model
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Time-dependent Schrodinger equation for many particles
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Solving Schroedinger's equation for Step Potential
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A thought experiment (excuse me if I have wrong information, i'm new)
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Feymman's theory, double slit experiment - Stephen Hawking
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Trace as a product of operators
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Lasers/lifetime of metastable states on brightness of beam
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Eigen functions of momentum operator
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Phase Factor of Spinors (what they represent)
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A Pauli and a Dirac electron, momentum density and spin.
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I was watching this documentary.Is this true?
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Is the radial part of the Laplacian in spherical coordinates Hermitian?
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Hyperfine splitting in Hydrogen atom
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Why don't all observables commute in QM?
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HUP and the effects of measuring a particle
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Applications of Functional Analysis ?
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What is the Frequency of a Photon? Understanding Light Particles Explained
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What is the Frequency in Einstein's Quantum Expression?
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Pair Production: Creating Matter from Light
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Explanation for uncertainty principal?
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What Are Casimir Operators and Rest Reference Conditions in Particle Physics?
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Multiplying ψ* in Quantum Mechanics: Understanding Probability Density
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Plasma Frequency and Work Function
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What is the Nature of Reality?
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The Multiple Worlds theory- it contradicts itself
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Is the Higgs Field a Key Player in Quantum Decoherence?
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Newbie question - about Schroedinger's Cat
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Understanding the triple slit experiment
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Debroglie Wavelength: λ & v Proportional?
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Is Our Reality a Simulation?
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No need for spooky action at a distance
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Scalar Boson and Quantum Non-locality
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