Minimax Strategy of Optimal Unambiguous State Discrimination

被引：0
|
作者：
Zhang Wen-Hai [1 ]
Yu Long-Bao [2 ]
Cao Zhuo-Liang [2 ]
Ye Liu [3 ]
机构：
[1] Huainan Normal Univ, Dept Phys, Huainan 232001, Peoples R China
[2] Hefei Normal Univ, Sch Elect & Informat Engn, Hefei 230061, Peoples R China
[3] Anhui Univ, Sch Phys & Mat Sci, Hefei 230039, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2012年 / 58卷 / 02期
基金：
美国国家科学基金会;
关键词：
quantum state discrimination; optimal unambiguous discrimination; minimax strategy; SINGLE PHOTONS; QUANTUM STATES; DOT;
D O I：
10.1088/0253-6102/58/2/07
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper, we consider the minimax strategy to unambiguously discriminate two pure nonorthogonal quantum states without knowing a priori probability. By exploiting the positive-operator valued measure, we derive the upper bound of the minimax measurement of the optimal unambiguous state discrimination. Based on the linear optical devices, we propose an experimentally feasible scheme to implement a minimax measure of a general pair of two nonorthogonal quantum states.
引用
收藏
页码：209 / 212
页数：4
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