Optimal quantum teleportation with an arbitrary pure state

被引：77

作者：

Banaszek, K

机构：

[1] Univ Rochester, Ctr Quantum Informat, Rochester, NY 14627 USA

[2] Univ Rochester, Rochester Theory Ctr Opt Sci & Engn, Rochester, NY 14627 USA

[3] Univ Warsaw, Inst Fiz Teoret, PL-00681 Warsaw, Poland

来源：

PHYSICAL REVIEW A | 2000年 / 62卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevA.62.024301

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an elementary derivation of the maximum fidelity attainable in teleportation using a single copy of two d-level systems in an arbitrary pure state. This derivation provides a complete set of necessary and sufficient conditions for optimal teleportation protocols. We also discuss the information on the teleported particle that is revealed in course of the protocol using a nonmaximally entangled state.

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页数：4

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