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Study of the Distillability of Werner States Using Entanglement Witnesses and Robust Semidefinite Programs

Reinaldo O. Vianna·Andrew C. Doherty
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Abstract

We use Robust Semidefinite Programs and Entanglement Witnesses to study the distillability of Werner states. We perform exact numerical calculations which show 2-undistillability in a region of the state space which was previously conjectured to be undistillable. We also introduce bases which yield interesting expressions for the {\em distillability witnesses} and for a tensor product of Werner states with arbitrary number of copies.

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Reinaldo O. Vianna, Andrew C. Doherty. 2006-08-11. Study of the Distillability of Werner States Using Entanglement Witnesses and Robust Semidefinite Programs. https://doi.org/10.1103/physreva.74.052306

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