Improving detectors using entangling quantum copiers

被引：11

作者：

Deuar, P ^{[1
]}

Munro, WJ ^{[1
]}

机构：

[1] Univ Queensland, Dept Phys, Ctr Laser Sci, Brisbane, Qld 4072, Australia

来源：

PHYSICAL REVIEW A | 2000年 / 61卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.61.010306

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a detection scheme that, using imperfect detectors, and imperfect quantum copying machines (which entangle the copies), allows one to extract more information from an incoming signal than with the imperfect detectors alone.

引用

页数：4

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