Quantum Entanglement
by David Parker/science Photo Library
Title
Quantum Entanglement
Artist
David Parker/science Photo Library
Medium
Photograph - Photograph
Description
Quantum entanglement is a physical phenomenon that occurs when pairs or groups of particles are generated or interact in ways such that the quantum state of each particle cannot be described independently. Due to the nature of quantum measurement, the behavior of particles gives rise to effects that can appear paradoxical: any measurement of a property of a particle can be seen as acting on that particle, and in the case of entangled particles, such action must be on the entangled system as a whole. It thus appears that one particle of an entangled pair knows" what measurement has been performed on the other, and with what outcome, even though there is no known means for such information to be communicated between the particles, which at the time of measurement may be separated by arbitrarily large distances."
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October 20th, 2019
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