Local distinguishability of quantum states and the distillation of entanglement

Details Local distinguishability of quantum states and the distillation of entanglement Local distinguishability of quantum states and the distillation of entanglement

2002-10-19

arxiv.org/abs/quant-ph/0210139v3

Quantum information and computation, V3(3),203-210 (2003)

Physics

Quantum Physics

4 page, the revision of quant-ph/0202165, submitted

Scientific paper

This paper tries to probe the relation between the local distinguishability of orthogonal quantum states and the distillation of entanglement. An new interpretation for the distillation of entanglement and the distinguishability of orthogonal quantum states in terms of information is given, respectively. By constraining our discussion on a special protocol we give a necessary and sufficient condition for the local distinguishability of the orthogonal pure states, and gain the maximal yield of the distillable entanglement. It is shown that the information entropy, the locally distinguishability of quantum states and the distillation of entanglement are closely related.

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