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No nonlocal box is universal

Dupuis, Frédéric
Hasidim, Avinatan
Méthot, André Allan
Pilpel, Haran
Published in Journal of mathematical physics. 2007, vol. 48, no. 8, p. 082107
Abstract We show that standard nonlocal boxes, also known as Popescu-Rohrlich machines, are not sufficient to simulate any nonlocal correlations that do not allow signaling. This was known in the multipartite scenario, but we extend the result to the bipartite case. We then generalize this result further by showing that no finite set containing any finite-output-alphabet nonlocal boxes can be a universal set for nonlocality.
Keywords Quantum communicationQuantum entanglement
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DUPUIS, Frédéric et al. No nonlocal box is universal. In: Journal of Mathematical Physics, 2007, vol. 48, n° 8, p. 082107. https://archive-ouverte.unige.ch/unige:805

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Deposited on : 2009-02-16

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