and electric signals. Examples Visibility in quantum mechanics Since the Schrödinger equation is a wave equation and all objects can be considered waves in quantum mechanics, interference is ubiquitous. Some examples: Bose–Einstein condensates can exhibit interference fringes. Atomic populations show interference in a Ramsey interferometer. Photons, atoms, electrons, neutrons, and molecules have exhibited interference in double-slit interferometers. See also Degree of coherence Interferometry Optical interferometry List of types of interferometers Hong–Ou–Mandel effect References External links Stedman Review of the Sagnac Effect Interferometry