CentralNotice From Wikipedia, the free encyclopedia Jump to: navigation , search The de Broglie relations redirect here. This article is about wave-like phenomena exhibited by particles of matter. For the ordinary type of wave propagating through material media, see Mechanical wave . Quantum mechanics Uncertainty principle Introduction Glossary History Background Classical mechanics Old quantum theory Bra–ket notation Hamiltonian Interference Fundamentals Complementarity Decoherence Entanglement Energy level Measurement Nonlocality Quantum number State Superposition Symmetry Tunnelling Uncertainty Wave function ( collapse ) Experiments Afshar Bell's inequality Davisson–Germer Double-slit Elitzur–Vaidman Franck–Hertz Mach–Zehnder Popper Quantum eraser ( delayed-choice ) Schrödinger's cat Stern–Gerlach Wheeler's delayed-c...