Quantum mechanics (also called quantum physics or quantum theory) is a physical theory that is believed to be the formalism underlying the description of all physical systems. Quantum mechanical departures from classical physics are most often encountered at small length scales, low energies and/or low temperatures.

Subcategories

There are 3 subcategories to this category.

Q

• Quantum field theory
• Quantum information science
• Quantum optics

Articles in category "Quantum mechanics"

There are 191 articles in this category.

Active laser medium Adiabatic process (quantum mechanics) Adiabatic theorem Afshar experiment Aharonov-Bohm effect Angular momentum Angular momentum quantum number Associated Legendre polynomials Azimuthal quantum number B Bargmann's limit Bell's theorem Berry phase Bloch sphere Bohm interpretation Bohr magneton Bohr model Bohr-Einstein debates Bose gas Bose-Einstein condensate Bose-Einstein statistics Bound state Bra-ket notation C C parity Canonical commutation relation Canonical conjugate variables Charge qubit Classical limit Clebsch-Gordan coefficients Coherent state Complementarity (physics) Complete set of commuting observables Compton effect Consciousness causes collapse Consistent Histories Copenhagen interpretation of quantum mechanics Correspondence principle Counterfactual definiteness Coupled cluster Coupling constant D Degenerate matter Density functional theory Density state Dirac equation Dirac operator Double-slit experiment Dyson series E EPR paradox Electron magnetic dipole moment Electron orbital Elementary particle Excited state F Fermi gas Fermi's Golden Rule Fermi-Dirac statistics Flux quantization Fock matrix Fock space Fock state G GHZ experiment Gas in a box Gaussian orbital Geometric quantization Giant magnetoresistive effect

G cont. Gibbs paradox Ground state H Hamiltonian (quantum mechanics) Heisenberg group Heisenberg picture Hidden variable theory Hydrogen atom Hyperfine structure I Interaction picture Interpretation of quantum mechanics Is logic empirical J Josephson junction K Kane quantum computer Kuzyk gap L Laser Lindblad equation List of mathematical topics in quantum theory M Many-body problem Many-worlds interpretation Mathematical formulation of quantum mechanics Matrix mechanics Measurement in quantum mechanics Measurement problem Molecular term symbol Multiple histories N No cloning theorem Nonlocality O Observable One-dimensional periodic case Open quantum system P Pariser-Parr-Pople method Parity (physics) Particle in a box Particle in a one-dimensional lattice (periodic potential) Particle in a ring Particle in a spherically symmetric potential Path integral formulation Pauli exclusion principle Pauli matrices Perturbation theory (quantum mechanics) Photoelectric effect Planck particle Potential Potential energy surface Projective Hilbert space Propagator Pure state Q Quantization (physics) Quantum Quantum Hall effect Quantum chaos Quantum chemistry Quantum circuit Quantum computer Quantum cryptography Quantum darwinism Quantum decoherence Quantum dot Quantum electrodynamics Quantum electronics Quantum entanglement Quantum field theory Quantum fluctuation Quantum harmonic oscillator

Q cont. Quantum immortality Quantum indeterminacy Quantum information Quantum level Quantum logic Quantum mechanics Quantum mechanics postulates Quantum number Quantum operation Quantum optics Quantum state Quantum statistical mechanics Quantum suicide Quantum superposition Quantum teleportation Quantum tunneling Quantum vibration Quantum well Quantum wire R Rapid single flux quantum Relativistic quantum chemistry Relativistic wave equations Representation theory of the Galilean group Ring wave guide S SQUID Schrödinger equation Schrödinger picture Schwinger's variational principle Second quantization Spherical harmonic Spin (physics) Spin singlet Spinor Stern-Gerlach experiment Stone-von Neumann theorem Subatomic particle Superconducting quantum computing Superselection sector Supersymmetric quantum mechanics T Term symbol Thermal de Broglie wavelength Timeline of quantum computing Totalitarian principle Transactional interpretation Transformation theory (quantum mechanics) Transition rule Tsirelson's bound Tunneling effect Twistor theory Two-level system U Uncertainty principle Unitarity Universal quantum computer User:Caroline Thompson/Bell test loopholes User:Caroline Thompson/Bell's theorem V Variational method (quantum mechanics) Vibrational energy relaxation W Wave model Wave packet Wavefunction Wavefunction collapse Wigner-Eckart theorem Work function Y Yukawa potential