Quantum cryptography, eavesdropping, and unsharp spin measurement

被引：0

作者：

Roy, S ^{[1
]}

Kar, G ^{[1
]}

机构：

[1] Indian Stat Inst, Phys & Appl Math Unit, Calcutta 700035, W Bengal, India

来源：

QUANTUM COMPUTING AND QUANTUM COMMUNICATIONS | 1999年 / 1509卷

关键词：

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

The various eavesdropping strategies on a quantum cryptographic channel as discussed by Gisin et. al, can be reproduced by unsharp spin (represented by positive operator valued measure) measurement of spin-1/2 particle. An upper bound for unsharp parameter is obtained so that it still gives rise to violation of Bell's inequality for the two particle transmission channel.

引用

页码：214 / 217

页数：4

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