Transformations of WW-Type Entangled States

preprint2010arXivOpen access

Abstract

The transformations of WW-type entangled states by using local operations assisted with classical communication are investigated. For this purpose, a parametrization of the WW-type states which remains invariant under local unitary transformations is proposed and a complete characterization of the local operations carried out by a single party is given. These are used for deriving the necessary and sufficient conditions for deterministic transformations. A convenient upper bound for the maximum probability of distillation of arbitrary target states is also found.

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