Condition for unambiguous state discrimination using local operations and classical communication

被引：69

作者：

Chefles, A ^{[1
]}

机构：

[1] Univ Hertfordshire, Dept Phys Astron & Math, Hatfield AL10 9AB, Herts, England

来源：

PHYSICAL REVIEW A | 2004年 / 69卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.69.050307

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We obtain a necessary and sufficient condition for a finite set of states of a finite-dimensional multiparticle quantum system to be amenable to unambiguous discrimination using local operations and classical communication. This condition is valid for states which may be mixed, entangled, or both. When the support of the set of states is the entire multiparticle Hilbert space, this condition is found to have an intriguing connection with the theory of entanglement witnesses.

引用

页码：050307 / 1

页数：4

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