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Distillability and partial transposition in bipartite systems

W. Dür·J. I. Cirac·M. Lewenstein·D. Bruss
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Abstract

We study the distillability of a certain class of bipartite density operators which can be obtained via depolarization starting from an arbitrary one. Our results suggest that non-positivity of the partial transpose of a density operator is not a sufficient condition for distillability, when the dimension of both subsystems is higher than two.

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W. Dür, J. I. Cirac, M. Lewenstein, D. Bruss. 1999-10-06. Distillability and partial transposition in bipartite systems. https://doi.org/10.1103/physreva.61.062313

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