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Title: The non-locality of n noisy Popescu-Rohrlich boxes
Authors: Fitzi, M.
Hänggi, E.
Scarani, V. 
Wolf, S.
Issue Date: 19-Nov-2010
Source: Fitzi, M.,Hänggi, E.,Scarani, V.,Wolf, S. (2010-11-19). The non-locality of n noisy Popescu-Rohrlich boxes. Journal of Physics A: Mathematical and Theoretical 43 (46) : -. ScholarBank@NUS Repository.
Abstract: We quantify the amount of non-locality contained in n noisy versions of the so-called Popescu-Rohrlich boxes (PRBs), i.e. bipartite systems violating the CHSH Bell inequality maximally. Following the approach by Elitzur, Popescu and Rohrlich, we measure the amount of non-locality of a system by representing it as a convex combination of a local behaviour, with maximal possible weight, and a non-signalling system. We show that the local part of n systems, each of which approximates a PRB with probability 1 - ε, is of order Θ(ε⌈n/2⌉) in the isotropic, and equal to (3ε)n in the maximally biased case. © 2010 IOP Publishing Ltd.
Source Title: Journal of Physics A: Mathematical and Theoretical
ISSN: 17518113
DOI: 46/465305
Appears in Collections:Staff Publications

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