Abstract
In a 1935 paper [1] that has since become a classic in the literature regarding conceptual implications of quantum mechanics, Einstein and his colleagues Boris Podolsky and Nathan Rosen (to be designated EPR) raised in one of its starkest forms the issue of nonlocality—that is, the occurrence of interactions instantaneously at a distance in violation of physicists’ intuitive sense of cause and effect as embodied in the principles of special relativity. Actually, Einstein’s principal focus of concern was the completeness of quantum mechanics as a self-consistent theory of individual particles (as opposed to a purely statistical theory of ensembles of particles), but the Gedankenexperiment proposed by EPR illustrated what many physicists throughout the ensuing years have considered to be one of the strangest features of quantum mechanics.
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Reference
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Silverman, M.P. (1995). Interferometry of Correlated Particles. In: More Than One Mystery. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-2504-1_3
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