EPR Steering inequalities with Communication Assistance

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Abstract

In this paper, we investigate the communication cost of reproducing Einstein-Podolsky-Rosen (EPR) steering correlations arising from bipartite quantum systems. We characterize the set of bipartite quantum states which admits a local hidden state model augmented with c bits of classical communication from an untrusted party (Alice) to a trusted party (Bob). In case of one bit of information (c = 1), we show that this set has a nontrivial intersection with the sets admitting a local hidden state and a local hidden variables model for projective measurements. On the other hand, we find that an infinite amount of classical communication is required from an untrusted Alice to a trusted Bob to simulate the EPR steering correlations produced by a two-qubit maximally entangled state. It is conjectured that a state-of-the-art quantum experiment would be able to falsify two bits of communication this way.

Original languageEnglish
Article number21634
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - Feb 16 2016

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Costs and Cost Analysis

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EPR Steering inequalities with Communication Assistance. / Nagy, S.; Vértesi, T.

In: Scientific Reports, Vol. 6, 21634, 16.02.2016.

Research output: Contribution to journalArticle

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