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arXiv · 0906.2735

A complete criterion for separability detection

Miguel Navascues·Masaki Owari·Martin B. Plenio
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Abstract

Using new results on the separability properties of bosonic systems, we provide a new complete criterion for separability. This criterion aims at characterizing the set of separable states from the inside by means of a sequence of efficiently solvable semidefinite programs. We apply this method to derive arbitrarily good approximations to the optimal measure-and-prepare strategy in generic state estimation problems. Finally, we report its performance in combination with the criterion developed by Doherty et al. [1] for the calculation of the entanglement robustness of a relevant family of quantum states whose separability properties were unknown.

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Miguel Navascues, Masaki Owari, Martin B. Plenio. 2009-06-15. A complete criterion for separability detection. https://doi.org/10.1103/physrevlett.103.160404

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