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Characterization of Distillable and Activable States using Entanglement Witnesses

B. Kraus·M. Lewenstein·J. I. Cirac
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Abstract

We introduce a formalism that connections entanglement witnesses and the distillation and activation properties of a state. We apply this formalism to two cases: First, we rederive the results presented in quant-ph/0104095 by Eggeling et al., namely that on copy of any bipartite state with non--positive partial transpose (NPPT) is either distillable, or activable. Second, we show that there exist three--partite NPPT states, with the property that two copies can neither be distilled, nor activated.

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B. Kraus, M. Lewenstein, J. I. Cirac. 2001-10-31. Characterization of Distillable and Activable States using Entanglement Witnesses. https://doi.org/10.1103/physreva.65.042327

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