Security against individual attacks for realistic quantum key distribution -: art. no. 052304

被引：0
|
作者：
Lütkenhaus, N [1 ]
机构：
[1] Helsinki Inst Phys, FIN-00014 Helsinki, Finland
来源：
PHYSICAL REVIEW A | 2000年 / 61卷 / 05期
关键词：
D O I：
10.1103/physreva.61.052304
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
I prove the security of quantum key distribution against individual attacks for realistic signals sources, including weak coherent pulses and down-conversion sources. The proof applies to the Bennett-Brassard 1984 protocol with the standard detection scheme (no strong reference pulse). I obtain a formula for the secure bit rare per time slot of an experimental setup, which can be used to optimize the performance of existing schemes for the considered scenario.
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页数：10
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