Decoy-state quantum key distribution for the heralded pair coherent state photon source with intensity fluctuations

被引：0

作者：

ZHOU Chun BAO WanSu FU XiangQun Institute of Electronic Technology The PLA Information Engineering University Zhengzhou China ^{[450004
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机构：

来源：

ScienceChina(InformationSciences) | 2010年 / 53卷 / 12期

关键词：

quantum key distribution; decoy states; heralded pair coherent state; intensity fluctuations;

D O I：

暂无

中图分类号：

TN918.1 [理论]; O413 [量子论];

学科分类号：

070104 ; 070201 ;

摘要：

This paper characterizes two important properties of the photon number distribution of the heralded pair coherent state (HPCS) photon source. The formula of secret key generation rates for the decoy-state quantum key distribution with intensity fluctuation source is proved to hold true for the HPCS photon source. By numerical simulations, we show that the three-intensity decoy-state protocols for the HPCS photon source is efficiently getting close to the ideal decoy-state method. Moreover, we find that the HPCS source is more robust against intensity fluctuation than the weak coherent photon (WCP) source, but less stable than the heralded single photon source (HSPS).

引用

页码：2485 / 2494

页数：10

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