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

页码：7415 / 7423

页数：9

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