Optimal realization of the transposition maps

被引：24

作者：

Buscemi, F

D'Ariano, GM

Perinotti, P

Sacchi, MF

机构：

[1] Univ Pavia, Theoret Quantum Opt Grp, I-27100 Pavia, Italy

[2] INFM, Unita Pavia, I-27100 Pavia, Italy

来源：

PHYSICS LETTERS A | 2003年 / 314卷 / 5-6期

关键词：

D O I：

10.1016/S0375-9601(03)00954-X

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We solve the problem of achieving the optimal physical approximation of the transposition for pure states of arbitrary quantum systems for finite and infinite dimensions. A unitary realization is also given for any finite dimension, which provides the optimal quantum cloning map of the ancilla as well. (C) 2003 Elsevier B.V. All rights reserved.

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页码：374 / 379

页数：6

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