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Quantifying the nonlocality of GHZ quantum correlations by a bounded communication simulation protocol

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Published in Physical Review Letters. 2011, vol. 107, no. 2, p. 020401
Abstract The simulation of quantum correlations with alternative nonlocal resources, such as classical communication, gives a natural way to quantify their nonlocality. While multipartite nonlocal correlations appear to be useful resources, very little is known on how to simulate multipartite quantum correlations. We present the first known protocol that reproduces 3-partite GHZ correlations with bounded communication: 3 bits in total turn out to be sufficient to simulate all equatorial Von Neumann measurements on the 3-partite GHZ state.
Stable URL http://archive-ouverte.unige.ch/unige:16052
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arXiv: 1102.0330
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Deposited on : 2011-06-03

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