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.
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收藏
页码：214 / 217
页数：4
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