Influence of noise on the fidelity and the entanglement fidelity of states

被引：25

作者：

Duan, LM ^{[1
]}

Guo, GC ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China

来源：

QUANTUM AND SEMICLASSICAL OPTICS | 1997年 / 9卷 / 06期

关键词：

D O I：

10.1088/1355-5111/9/6/008

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The fidelity and the entanglement fidelity are two important quantities indescribing the transmission of quantum information through (possibly noisy) quantum channels. In this paper these two quantities are calculated for different kinds of state which are transmitted in noisy channels. A general equation is obtained for these fidelities. Some examples are given to illustrate the general result and possible applications of these results to quantum cryptography and teleportation via noisy channels are discussed.

引用

页码：953 / 959

页数：7

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