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Quantum Correlations and Secret Bits

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Published in Physical Review Letters. 2005, vol. 94, no. 2
Abstract It is shown that (i) all entangled states can be mapped by single-copy measurements into probability distributions containing secret correlations, and (ii) if a probability distribution obtained from a quantum state contains secret correlations, then this state has to be entangled. These results prove the existence of a two-way connection between secret and quantum correlations in the process of preparation. They also imply that either it is possible to map any bound entangled state into a distillable probability distribution or bipartite bound information exists.
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ACIN, Antonio, GISIN, Nicolas. Quantum Correlations and Secret Bits. In: Physical Review Letters, 2005, vol. 94, n° 2. https://archive-ouverte.unige.ch/unige:36746

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Deposited on : 2014-05-20

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