Aharonov—Bohm Effect.- Aharonov-Casher Effect.- Algebraic Quantum Mechanics.- Angular Momentum.- Anyons.- Aspect Experiment.- Asymptotic Freedom.- Atomic Model.- Atomic Models, J.J. Thomson's “Plum Pudding” Model.- Atomic Models, Nagaoka's Saturnian Model.- Bell's Theorem.- Berry's Phase.- Black Body.- Black-Body Radiation.- Bohm Interpretation of Quantum Mechanics.- Bohmian Mechanics.- Bohm's Approach to the EPR Paradox.- Bohr's Atomic Model.- Bohr—Kramers—Slater Theory.- Born Rule and its Interpretation.- Bose-Einstein Condensation.- Bose—Einstein Statistics.- Bremsstrahlung.- Brownian Motion.- Bub—Clifton Theorem.- Casimir Effect.- Cathode Rays.- Causal Inference and EPR.- Clauser-Horne-Shimony-Holt (CHSH) — Theorem.- Cluster States.- Coherent States.- Color Charge Degree of Freedom in Particle Physics.- Complementarity Principle.- Complex-Conjugate Number.- Compton Experiment (or Compton Effect).- Consistent Histories.- Copenhagen Interpretation.- Correlations in Quantum Mechanics.- Correspondence Principle.- Counterfactuals in Quantum Mechanics.- Covariance.- CPT Theorem.- Creation and Annihilation Operators.- Creation and Detection of Entanglement.- Davisson—Germer Experiment.- De Broglie Wavelength (? = h/p).- Decay.- Decoherence.- Degeneracy.- Delayed-Choice Experiments.- Density Matrix.- Density Operator.- Diffeomorphism Invariance.- Dirac Equation.- Dirac Notation.- Double-Slit Experiment (or Two-Slit Experiment).- Effect.- Ehrenfest Theorems.- Eigenstates, Eigenvalues.- Einstein Locality.- Electron Interferometry.- Electrons.- Ensembles in Quantum Mechanics.- Entanglement.- Entanglement Purification and Distillation.- Entropy of Entanglement.- EPR-Problem (Einstein-Podolsky-Rosen Problem).- Errors and Paradoxes in Quantum Mechanics.- Exclusion Principle (or Pauli Exclusion Principle).- Experimental Observation of Decoherence.- Fermi-Dirac Statistics.- Feynman Diagrams.- Fine-Structure Constant.- Franck—Hertz Experiment.- Functional Integration; Path Integrals.- Gauge Symmetry.- Generalizations of Quantum Statistics.- GHZ (Greenberger—Horne—Zeilinger) Theorem and GHZ States.- Gleason's Theorem.- Grover's Algorithm.- GRW Theory (Ghirardi, Rimini, Weber Model of Quantum Mechanics).- Hamiltonian Operator.- Hardy Paradox.- Heisenberg Microscope.- Heisenberg Picture.- Heisenberg Uncertainty Relation (Indeterminacy Relations).- Hermitian Operator.- Hidden Variables.- Hidden-Variables Models of Quantum Mechanics (Noncontextual and Contextual).- Hilbert Space.- Holism in Quantum Mechanics.- Identity of Quanta.- Identity Operator.- Ignorance Interpretation of Quantum Mechanics.- Indeterminacy Relations.- Indeterminism and Determinism in Quantum Mechanics.- Indistinguishability.- Interaction-Free Measurements (Elitzur—Vaidman, EV IFM).- Interpretations of Quantum Mechanics.- Invariance.- Ithaca Interpretation of Quantum Mechanics.- jj-Coupling.- Kaluza—Klein Theory.- Kochen—Specker Theorem.- Landés g-factor and g-formula.- Large-Angle Scattering.- Light Quantum.- Locality.- Loopholes in Experiments.- Lüders Rule.- Mach—Zehnder Interferometer.- Magnetic Resonance.- Many Worlds Interpretation of Quantum Mechanics.- Matrix Mechanics.- Matter Waves.- Measurement Problem.- Measurement Theory.- Mesoscopic Quantum Phenomena.- Metaphysics of Quantum Mechanics.- Mixed State.- Mixing and Oscillations of Particles.- Modal Interpretations of Quantum Mechanics.- Neutron Interferometry.- No-Cloning Theorem.- Nonlocality.- Nuclear Fission.- Nuclear Models.- Objectification.- Objective Quantum Probabilities.- Observable.- One- and Two-Photon Interference.- Operational Quantum Mechanics, Quantum Axiomatics and Quantum Structures.- Operator.- Orthodox Interpretation of Quantum Mechanics.- Orthonormal Basis.- Parity.- Particle Physics.- Particle Tracks.- Parton Model.- Paschen—Back Effect.- Pauli Exclusion Principle.- Pauli Spin Matrices.- Photoelectric Effect.- Photon.- Pilot Waves.- Planck's Constant h.- POVM (Positive Operator Value Measure).- Probabilistic Interpretation of Quantum Mechanics.- Probability in Quantum Mechanics.- Projection.- Projection Postulate.- Propensities in Quantum Mechanics.- Protective Measurements.- Pure States.- Quantization (First, Second).- Quantization (Systematic).- Quantum Chaos.- Quantum Chemistry.- Quantum Chromodynamics (QCD).- Quantum Communication.- Quantum Computation.- Quantum Electrodynamics (QED).- Quantum Entropy.- Quantum Eraser.- Quantum Field Theory.- Quantum Gravity (General) and Applications.- Quantum Hall Effect.- Quantum Interrogation.- Quantum Jump Experiments.- Quantum Jumps.- Quantum Logic.- Quantum Mechanics.- Quantum Numbers.- Quantum State Diffusion Theory (QSD).- Quantum State Reconstruction.- Quantum Statistics.- Quantum Theory, 1914–1922.- Quantum Theory, Crisis Period 1923-Early 1925.- Quantum Theory, Early Period (1900–1913).- Quantum Zeno Effect.- Quarks.- Quasi-Classical Limit.- Radioactive Decay Law (Rutherford–Soddy).- Relativistic Quantum Mechanics.- Renormalization.- Rigged Hilbert Spaces in Quantum Physics.- Rigged Hilbert Spaces for the Dirac Formalism of Quantum Mechanics.- Rigged Hilbert Spaces and Time Asymmetric Quantum Theory.- Russell–Saunders Coupling.- Rutherford Atom.- Scattering Experiments.- Schrodinger Equation.- Schrödinger's Cat.- Schrödinger Picture.- Selection Rules.- Self-Adjoint Operator.- Semi-classical Models.- Shor's Algorithm.- Solitons.- Sommerfeld School.- Specific Heats.- Spectral Decomposition.- Spectroscopy.- Spin.- Spin Echo.- Spin Statistics Theorem.- Squeezed States.- Standard Model.- Stark Effect.- States in Quantum Mechanics.- States, Pure and Mixed, and Their Representations.- State Operator.- Statistical Operator.- Stern—Gerlach Experiment.- Superconductivity.- Superfluidity.- Superluminal Communication in Quantum Mechanics.- Superposition Principle (Coherent and Incoherent Superposition).- Superselection Rules.- Symmetry.- Time in Quantum Theory.- Trace.- Transactional Interpretation of Quantum Mechanics.- Tunneling.- Two-State Vector Formalism.- Uncertainty Principle, Indetermincay Relations.- Unitary Operator.- Vector Model.- Wave Function.- Wave Function Collapse.- Wave Mechanics.- Wave Packet.- Wave-Particle Duality: Some History.- Wave-Particle Duality: A Modern View.- Weak Value and Weak Measurements.- Werner States.- Which-Way or Welcher-Weg-Experiments.- Wigner Distribution.- Wigner's Friend.- X-Rays.- Zeeman Effect.- Zero-Point Energy.