摘要
基于BB84协议原理,构建了应力环境下偏振编码的点对点实际量子密钥分发(QKD)系统。完成了商用光纤信道应力作用下的量子密钥分发实验,对系统主要参数实时采集并进行数据分析。结果表明:随着光纤信道上外界作用力的增加,QKD系统诱骗态和信号态误码率均随之增大,成码率降低;QKD系统所能承受的拉力极值小于压力极值,系统对于拉力变化更为敏感。本研究结果对指导密钥分发在军事和商用保密通信中的实际应用具有一定的参考价值。
An actual point to point Quantum Key Distribution(QKD)experimental system of polarization encoding was built based on BB84 protocol under stress testing conditions.QKD experiment under commercial fiber channel stress was carried out.The main parameters of the system were collected in real time for data analysis.The results show that,with the increase in the external forces on the fiber channel,both the decoy state error rate and the signal state error rate of the QKD system increase,but the bit generation rate decreases.The tensile limit value of the QKD system is lass than the limit value of the pressure,the system is more sensitive to tension change.Results of this study may provide guidance for the application of key distribution in military and commercial secret communication.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2017年第5期1612-1616,共5页
Journal of Jilin University:Engineering and Technology Edition
基金
国家自然科学基金重点项目(61631009)
国家自然科学基金项目(61373051)
教育部春晖计划项目(Z2015024)
吉林省科技发展项目(20150204006
20160101259JC
20170204023GX)
关键词
通信技术
量子密钥分发
BB84协议
诱骗态
信号态
误码率
communication technology
quantum key distribution
BB84 protocol
decoy state
signal state
bit error rate
