Decoy-state reference-frame-independent quantum key distribution with both source errors and statistical fluctuations

作     者：刘康 李剑 朱建荣 张春梅 王琴 

作者机构：Institute of Signal Processing Transmission Nanjing University of Posts and Telecommunications Nanjing 210003 China Key Laboratory of Broadband Wireless Communication and Sensor Network Technology of the Ministry of Education Nanjing University of Posts and Telecommunications Nanjing 210003 China Department of Physics Southeast University Nanjing 211189 China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2017年第26卷第12期

页      面：109-112页

核心收录：

学科分类：11[军事学] 1105[军事学-军队指挥学] 07[理学] 0839[工学-网络空间安全] 08[工学] 070201[理学-理论物理] 110505[军事学-密码学] 110503[军事学-军事通信学] 0702[理学-物理学] 

基　　金：Project supported by the National Key Research and Development Program of China(Grant No.2017YFA0304100) the National Natural Science Foundation of China(Grant Nos.61475197,61590932,11774180,and 61705110) the Natural Science Foundation of the Jiangsu Higher Education Institutions(Grant Nos.15KJA120002 and 17KJB140016) the Outstanding Youth Project of Jiangsu Province,China(Grant No.BK20150039) the Natural Science Foundation of Jiangsu Province,China(Grant No.BK20170902) the Science Fund from the Nanjing University of Posts and Telecommunications,China(Grant No.NY217006) 

主　　题：quantum key distribution reference-frame-independent statistical fluctuations source errors 

摘      要：Reference-frame-independent quantum key distribution （RFI QKD） can generate secret keys without the alignment of reference frames, which is very robust in real-life implementations of QKD systems. However, the performance of decoy-state RFI QKD with both source errors and statistical fluctuations is still missing until now. In this paper, we investigate the performance of decoy-state RFI QKD in practical scenarios with two kinds of light sources, the heralded single photon source （HSPS） and the weak coherent source （WCS）, and also give clear comparison results of decoy-state RFI QKD with WCS and HSPS. Simulation results show that the secret key rates of decoy-state RFI QKD with WCS are higher than those with HSPS in short distance range, but the secret key rates of RFI QKD with HSPS outperform those with WCS in long distance range.