Extracting an entanglement signature from only classical mutual information

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

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


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.

Original languageEnglish (US)
Article number032305
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - Sep 6 2011

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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