Phase-covariant quantum cloning

被引：11
|
作者：
Fan, H [1 ]
Matsumoto, K [1 ]
Wang, XB [1 ]
Imai, H [1 ]
机构：
[1] ERATO, Japan Sci & Technol Corp, Quantum Computat & Informat Project, Bunkyo Ku, Tokyo 1330033, Japan
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2002年 / 35卷 / 34期
关键词：
D O I：
10.1088/0305-4470/35/34/312
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Quantum cloning machines for equatorial qubits are studied. For a I to 2 phase-covariant quantum cloning machine, using Hilbert-Schmidt norm and Bures fidelity, we show that our transformation can achieve the bound of the fidelity.
引用
收藏
页码：7415 / 7423
页数：9
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