Asymmetric twin-field quantum key distribution with both statistical and intensity fluctuations

作     者：Shao-Fu He Yang Wang Jia-Ji Li Wan-Su Bao 何少甫;汪洋;李家骥;鲍皖苏

作者机构：Henan Key Laboratory of Quantum Information and CryptographySSF IEUZhengzhouHenan 450001China Synergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of ChinaHefeiAnhui 230026China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2020年第72卷第6期

页      面：37-42页

核心收录：

学科分类：07[理学] 070104[理学-应用数学] 070201[理学-理论物理] 0701[理学-数学] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation of China(61675235,61605248 and 61505261) National Key Research and Development Program of China(2016YFA0302600) 

主　　题：twin-field quantum key distribution asymmetrical losses statistical fluctuations intensity fluctuations 

摘      要：Twin-field quantum key distribution(TF-QKD)is a disruptive innovation which is able to overcome the rate-distance limit of QKD without trusted *** the proposal of the first TF-QKD protocol,theoretical and experimental breakthroughs have been made to enhance its ***,there still exist some practical issues waiting for *** this paper,we examine the performances of asymmetric TF-QKD protocol with unstable light sources and limited data *** statistical fluctuations of the parameters are estimated employing Azuma’s *** numerical simulations,we compare the secret key rates of the asymmetric TF-QKD protocol with different data sizes and variant intensity fluctuation *** results demonstrate that both statistical and intensity fluctuations have significant impacts on the performance of asymmetric TF-QKD.