Economical phase-covariant cloning with multiclones

被引：0

作者：

Zhang Wen-Hai ^{[1
,2
,3
]}

Ye Liu ^{[2
]}

机构：

[1] Huainan Normal Univ, Dept Phys, Huainan 232001, Peoples R China

[2] Anhui Univ, Sch Phys & Mat Sci, Hefei 230039, Peoples R China

[3] Hefei Teachers Coll, Dept Phys & Elect Engn, Hefei 230601, Peoples R China

来源：

CHINESE PHYSICS B | 2009年 / 18卷 / 09期

基金：

中国国家自然科学基金;

关键词：

quantum cloning; economical phase-covariant cloning; QUANTUM CLONING; UNIVERSAL; SCHEME; IMPLEMENTATION; MACHINES; STATES;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper presents a very simple method to derive the explicit transformations of the optimal economical 1 to M phase-covariant cloning. The fidelity of clones reaches the theoretic bound [D'Ariano G M and Macchiavello C 2003 Phys. Rev. A 67 042306]. The derived transformations cover the previous contributions [Delgado Y, Lamata L et al, 2007 Phys. Rev. Lett. 98 150502] in which M must be odd.

引用

页码：3702 / 3705

页数：4

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