Scintillation discriminator improves free-space quantum key distribution

被引：10
|
作者：
Tang, Feng [1 ]
Zhu, Bing [1 ]
机构：
[1] Univ Sci & Technol China, Dept Elect Engn & Informat Sci, Hefei 230026, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2013年 / 11卷 / 09期
关键词：
PROPAGATION;
D O I：
10.3788/COL201311.090101
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present an analysis of the impact of afluctuating-loss channel on free-space quantum key distribution (QKD). Considering the characteristics of the fluctuating-loss channel, a scintillation discriminator that acts according to the information of instant channel loss is proposed to help improve the performance of a free-space QKD system, which suffers from the influence of atmospheric turbulence. Theoretical and numerical results show that this discriminator is a useful tool for increasing secure key rates, especially for long-range free-space QKD.
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页数：4
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