Almost every set of N≥d+1 orthogonal states on d⊗n is locally indistinguishable

被引:7
作者
Cohen, Scott M. [1 ,2 ]
机构
[1] Duquesne Univ, Dept Phys, Pittsburgh, PA 15282 USA
[2] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA
来源
PHYSICAL REVIEW A | 2008年 / 77卷 / 06期
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevA.77.060309
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
I consider the problem of deterministically distinguishing the state of a multipartite system, from a set of N >= d+1 orthogonal states, where d is the dimension of each party's subsystem. It is shown that if the set of orthogonal states is chosen at random, then there is a vanishing probability that this set will be perfectly distinguishable under the restriction that the parties use only local operations on their subsystems and classical communication among themselves.
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页数:4
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