Distillability and partial transposition in bipartite systems

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.

8 pages, 1 figure

References in corpus (1)

• Evidence for Bound Entangled States with Negative Partial Transpose

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