Phys. Rev. A 72, 022315 (2005) [3 pages]Nonbilocal measurement via an entangled stateReceived 2 January 2005; published 16 August 2005 Two observers, who share a pair of particles in an entangled mixed state, can use it to perform some nonbilocal measurements over another bipartite system. In particular, one can construct a specific game played by the observers against a coordinator, in which they can score better than a pair of observers who only share a classical communication channel. The existence of such a game is an operational implication of an entanglement witness. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.022315
DOI:
10.1103/PhysRevA.72.022315
PACS:
03.67.Mn, 03.65.Ud
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