### EPR Steering inequalities with Communication Assistance.

*Ontology highlight*

**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.

**SUBMITTER: **Nagy S

**PROVIDER: **S-EPMC4754951 | BioStudies | 2016-01-01

**SECONDARY ACCESSION(S): **10.1038/srep21634

**REPOSITORIES: ** biostudies

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