Quantum nonlocality for each pair in an ensemble

Avshalom C. Elitzur, Sandu Popescu, Daniel Rohrlich

Research output: Contribution to journalArticlepeer-review

83 Scopus citations


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.

Original languageEnglish
Pages (from-to)25-28
Number of pages4
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number1
StatePublished - 27 Jan 1992
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Quantum nonlocality for each pair in an ensemble'. Together they form a unique fingerprint.

Cite this