Quantum mechanics, also known as quantum physics, is the fundamental physical theory that describes the behavior of matter and of light; its unusual characteristics typically occur at and below the sc
A simplified diagram of quantum tunneling, a phenomenon by which a particle may move through a barrier which would be impossible under classical mechanics
Quantum entanglement is the phenomenon in which the quantum state of each particle in a group cannot be described independently of the state of the others, even when the particles are separated by a l
Article headline regarding the Einstein–Podolsky–Rosen (EPR) paradox paper, in the 4 May 1935 issue of The New York Times