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Optimal conclusive discrimination of two states can be achieved locally

Zhengfeng Ji, Hongen Cao, Mingsheng Ying

quant-pharXiv:quant-ph/0407120

Abstract

This paper constructs a LOCC protocol that achieves the global optimality in conclusive discrimination of any two states with arbitrary a priori probability. This can be interpreted that there is no ``non-locality'' in the conclusive discrimination of two multipartite states.

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