Scientific article
Open access

Characterizing the nonlocal correlations created via entanglement swapping

Published inPhysical review letters, vol. 104, 170401
Publication date2010

Quantum systems that have never interacted can become nonlocally correlated through a process called entanglement swapping. To characterize nonlocality in this context, we introduce local models where quantum systems that are initially uncorrelated are described by uncorrelated local variables. This additional assumption leads to stronger tests of nonlocality. We show, in particular, that an entangled pair generated through entanglement swapping will already violate a Bell-type inequality for visibilities as low as 50% under our assumption.

Citation (ISO format)
BRANCIARD, Cyril, GISIN, Nicolas, PIRONIO, Stefano. Characterizing the nonlocal correlations created via entanglement swapping. In: Physical review letters, 2010, vol. 104, p. 170401. doi: 10.1103/PhysRevLett.104.170401
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Article (Accepted version)
ISSN of the journal0031-9007

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