Physical Review A

Extracting an entanglement signature from only classical mutual information

David J. Starling, Curtis J. Broadbent, John C. Howell

Published Sep 6, 2011• 1 citation

Abstract

We introduce a quantity which is formed using classical notions of mutual information and which is computed using the results of projective measurements. This quantity constitutes a sufficient condition for entanglement and represents the amount of information that can be extracted from a bipartite system for spacelike separated observers. In addition to discussion, we provide simulations as well as experimental results for the singlet and maximally correlated mixed states.

DOI: 10.1103/physreva.84.032305

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