If violations of Bell's inequality turn up in measurements on an ensemble of particle pairs, do they imply that each pair behaves nonlocally, or only the ensemble as a whole? We show that each pair in the ensemble behaves nonlocally when the particles are spins coupled in a singlet state. For spins in a nonsinglet state, however, a model in which some of the pairs behave locally reproduces quantum predictions.
|Number of pages||4|
|Journal||Physics Letters, Section A: General, Atomic and Solid State Physics|
|State||Published - 27 Jan 1992|