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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

Graduate Universal quantum physics
Graduate Mandelstam Variables for 2->2 Scattering with Equal Masses in CoM Frame
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High School How does electron microscopy exploit wave/particle duality?
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Undergrad Can someone explain this picture to me?
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Undergrad Finite difference method for Schrödinger equation
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Undergrad Quantum thermodynamics of single particle
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Undergrad Is vacuum energy infinite? If it is, how and why?
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High School Can quantum mechanics be derived from deeper principles?
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High School Could spin be a combination of magnetic monopoles?
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High School Is this equal to teleporting information?
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High School How Does Quantum Darwinism Relate to the Born Rule and Observer Agreement?
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Undergrad Bell's Theorem: Understanding Bell's Nonlocality and How it Applies to Photons
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Undergrad Role of entanglement in general purpose quantum computing
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High School Is there a minimum wavelength for electromagnetic radiation?
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Graduate Is Brute Force the Best Approach to Proving Feynman's Denominator Formula?
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Undergrad Does the electron really spin 720 degrees?
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Graduate Spinors in dimensions other than 4
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Undergrad Unified gravity with electroweak through SU(2)xSU(2)xU(1)
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High School What is the Light Constant and Its Relationship to Maxwell's Equations?
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High School Decoherence thought experiment
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High School Is it a myth that serves as motivation for decoherence?
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Graduate Particles in quantum field theory
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High School Photoelectric effect and atomic excitation
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High School Compton’s experiment vs ordinary mirror
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Undergrad Uncertainty of electron energy based on confinement radius?
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Undergrad Decoherence and time reversal asymmetry
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Undergrad Photon absorption and speed of wave function propagation....
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High School Is an Electron a Wave? Understanding the Nature of Electrons
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Undergrad Problem during finding <x> in p space
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Undergrad What is the width of a wave packet?
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High School Can Particles Really Pop Into Existence from a Vacuum?
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Undergrad Understanding Spinors - Geometry & Usage
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Graduate Is Gravity Directly Related to Groupings of Atoms?
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Undergrad Stationary states -- Boltzmann distribution
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High School What Causes Decoherence in Quantum Systems?
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Graduate Issue in the electron’s infinite self-energy
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High School States as positive operators of unit trace
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Undergrad Square integrable wave functions vanishing at infinity
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Undergrad Wavefunction spreading speed in material mediums
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Undergrad What is the wavelike behavior of an electron in superposition?
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Undergrad Everett on measurements: what does he mean?
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Undergrad Two single-photon Fock states vs one two-photon Fock state
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High School What is the relationship between spin and angular momentum in quantum mechanics?
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Undergrad Entangled system pure state or not?
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High School Is wave a physical object or its just a model?
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Undergrad Are renormalizable QFT the ''really renormalizable''?
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High School Why do we say that there is no polarization until it is measured
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High School Is dark/vacuum potential energy infinite?
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Undergrad Why does an electron undergo diffraction?
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High School Penrose collapse and Superposition
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Undergrad Is there any operator for momentum in terms of t?
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High School CPT Symmetry: Proving the Theorem & Lorentz Transformation
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Undergrad Limit to the max size of a Nucleus
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Undergrad Vanishing Hamiltonian for quantum path integral
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Graduate Feynman rules for a 0-dimensional field theory
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Undergrad Path integral and causally disconnected parts of universe....
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High School Quantum Oscillator States: Is the Ladder Operator Enough?
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Graduate Function integration of a Gaussian integral
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Why quantum mechanics looks so different from classical one?
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How to Calculate Probability using Density Operator?
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Undergrad Anderson Localization and general disorder of matter?
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High School Can position eigenstates be considered qubits in quantum computing?
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Undergrad Simon's Algorithm: Solving the Mystery of f(x+s)
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Undergrad How can you detect which path an electron will take in a double-slit experiment?
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Graduate Utility of path integral formulation of quantum mechanics
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Insights Why Is Quantum Mechanics So Difficult? - Comments
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Undergrad Probability of one-photon loss from a cavity
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Undergrad Why is the Kinetic Energy Operator Differentiated Twice Instead of Squared?
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High School Does QM allow for entropy decrease of a closed system?
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Undergrad Why Is the Limit ##\hbar \rightarrow 0## Called the Semiclassical Limit?
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Graduate Where does statistical physics/mechanics fit in with QFT,GR?
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Undergrad Beam in specific photon number state?
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High School Understanding Pure States in Quantum Mechanics: From Atoms to Electrons
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Undergrad Localization of particles and disorder at the quantum level?
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Undergrad Wave particle duality and phonons
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Graduate Projection trick to obtain time-ordered correlator
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Graduate Partition function in quantum field theory
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Graduate Path integral computes time-ordered products
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Undergrad Why can't we use negative values of n in the 1D particle in a box system?
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Graduate 3D oscillator trapped away from centre
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Undergrad Green's Function: Hamiltonian and Density of States Explained
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Undergrad How does Bell make this step in his proof?
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High School Collision of identical fermions
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What is the meaning of this equation?
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High School How Does DeBroglie Wavelength Influence Our Understanding of Dark Matter?
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Undergrad The typical and the exceptional in physics
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If light is quantized, why are EM spectrum and Blackbody spectrum continuous?
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Undergrad Is Light a Particle or a Wave: What’s the Real Answer in Modern Physics?
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Undergrad QFT for the Gifted Amateur Question (2)
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Undergrad Does the wavefunction evolve only to the future?
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High School Is wave particle duality really wrong?
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Undergrad Are there other types of operators that can produce real eigenvalues?
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High School Uncertain position and momentum -- A property of particles?
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Undergrad Origin of geometric similarities between multipoles & AO's
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High School How does Quantum Teleportation Work?
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High School Is Consciousness Influencing Branch Selection in Quantum Decoherence?
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Graduate Quantum Field Theory for the Gifted Amateur: Fourier Transforms & Excitations
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Undergrad Spin Eigenvectors: | + > vs | - >?
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Mathematical Format of Lagrangian vs Symmetries
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High School How do I calculate electron acceleration by gravitational waves
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Undergrad Equation Name & Description: What Is It?
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