Local distinguishability of multipartite orthogonal quantum states

被引：399

作者：

Walgate, J ^{[1
]}

Short, AJ ^{[1
]}

Hardy, L ^{[1
]}

Vedral, V ^{[1
]}

机构：

[1] Univ Oxford, Clarendon Lab, Ctr Quantum Computat, Oxford OX1 3PU, England

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.85.4972

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider one copy of a quantum system prepared in one of two orthogonal pure states, entangled or otherwise, and distributed between any number of parties. We demonstrate that it is possible to identify which of these two states the system is in by means of local operations and classical communication alone. The protocol we outline is both completely reliable and completely general; it will correctly distinguish any two orthogonal states 100% of the time.

引用

页码：4972 / 4975

页数：4

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