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arXiv · 0911.3559

Multipartite fully-nonlocal quantum states

Mafalda L. Almeida·Daniel Cavalcanti·Valerio Scarani·Antonio Acin
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Abstract

We present a general method to characterize the quantum correlations obtained after local measurements on multipartite systems. Sufficient conditions for a quantum system to be fully-nonlocal according to a given partition, as well as being (genuinely) multipartite fully-nonlocal, are derived. These conditions allow us to identify all completely-connected graph states as multipartite fully-nonlocal quantum states. Moreover, we show that this feature can also be observed in mixed states: the tensor product of five copies of the Smolin state, a biseparable and bound entangled state, is multipartite fully-nonlocal.

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Mafalda L. Almeida, Daniel Cavalcanti, Valerio Scarani, Antonio Acin. 2010-08-30. Multipartite fully-nonlocal quantum states. https://doi.org/10.1103/physreva.81.052111

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