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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

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