Revisiting the Dolinar receiver through multiple-copy state discrimination theory

被引：42

作者：

Assalini, Antonio ^{[1
]}

Dalla Pozza, Nicola ^{[1
]}

Pierobon, Gianfranco ^{[1
]}

机构：

[1] Univ Padua, Dept Informat Engn, I-35131 Padua, Italy

来源：

PHYSICAL REVIEW A | 2011年 / 84卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.84.022342

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We consider the problem of discriminating between two quantum coherent states by interpreting a single state as being a collection of several successive copies of weaker coherent states. By means of recent results on multiple-copy state discrimination, it is possible to give a reinterpretation of the Dolinar receiver and carry out a quite-straightforward analysis of its behavior. We also propose and investigate a suboptimal detection scheme derived from the Dolinar's architecture, which is shown to slightly outperform some other near-optimal schemes available in the literature.

引用

页数：6

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