Nonlocality tests enhanced by a third observer.

Phys Rev Lett

Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543.

Published: January 2012

We consider Bell tests involving bipartite states shared between three parties. We show that the simple inclusion of a third part may greatly simplify the measurement scenario (in terms of the number of measurement settings per part) and allows the identification of previously unknown nonlocal resources.

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http://dx.doi.org/10.1103/PhysRevLett.108.040402DOI Listing

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