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Quantifying the nonlocality of Greenberger-Horne-Zeilinger quantum correlations by a bounded communication simulation
Cyril Branciard1, Nicolas Gisin
1School of Mathematics and Physics, The University of Queensland, St Lucia, QLD 4072, Australia.
Abstract:
The simulation of quantum correlations with finite 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 a protocol that reproduces tripartite Greenberger-Horne-Zeilinger correlations with bounded communication: 3 bits in total turn out to be sufficient to simulate all equatorial Von Neumann measurements on the tripartite Greenberger-Horne-Zeilinger state.
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