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arXiv · 0908.2640

Simulation of equatorial von Neumann measurements on GHZ states using nonlocal resources

Jean-Daniel Bancal·Cyril Branciard·Nicolas Gisin
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Abstract

Reproducing with elementary resources the correlations that arise when a quantum system is measured (quantum state simulation), allows one to get insight on the operational and computational power of quantum correlations. We propose a family of models that can simulate von Neumann measurements in the x-y plane of the Bloch sphere on n-partite GHZ states using only bipartite nonlocal boxes. For the tripartite and fourpartite states, the models use only bipartite nonlocal boxes; they can be translated into classical communication schemes with finite average communication cost.

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Jean-Daniel Bancal, Cyril Branciard, Nicolas Gisin. 2009-08-18. Simulation of equatorial von Neumann measurements on GHZ states using nonlocal resources. https://doi.org/10.1155/2010/293245

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