TY - JOUR
T1 - Quantum nonlocality for each pair in an ensemble
AU - Elitzur, Avshalom C.
AU - Popescu, Sandu
AU - Rohrlich, Daniel
N1 - Funding Information:
Supported by the US—Israel Binational Science Foundation.
PY - 1992/1/27
Y1 - 1992/1/27
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0003056889&partnerID=8YFLogxK
U2 - 10.1016/0375-9601(92)90952-I
DO - 10.1016/0375-9601(92)90952-I
M3 - Article
AN - SCOPUS:0003056889
VL - 162
SP - 25
EP - 28
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
SN - 0375-9601
IS - 1
ER -