Optimal quantum cloning via stimulated emission

被引：149

作者：

Simon, C ^{[1
]}

Weihs, G ^{[1
]}

Zeilinger, A ^{[1
]}

机构：

[1] Univ Vienna, Inst Expt Phys, A-1090 Vienna, Austria

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.84.2993

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that optimal universal quantum cloning can be realized via stimulated emission. Universality of the cloning procedure is achieved by chousing systems that have appropriate symmetries. We first discuss a scheme based on stimulated emission in certain three-level systems, e.g., atoms in a cavity. Then we present a way of realizing optimal universal cloning based on stimulated parametric down-conversion. This scheme also implements the optimal universal NOT operation.

引用

页码：2993 / 2996

页数：4

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