A universal simulating framework for quantum key distribution systems

作     者：Guan-Jie FAN-YUAN Wei CHEN Feng-Yu LU Zhen-Qiang YIN Shuang WANG Guang-Can GUO Zheng-Fu HAN Guan-Jie FAN-YUAN;Wei CHEN;Feng-Yu LU;Zhen-Qiang YIN;Shuang WANG;Guang-Can GUO;Zheng-Fu HAN

作者机构：CAS Key Laboratory of Quantum InformationUniversity of Science and Technology of China State Key Laboratory of Cryptography 

出 版 物：《Science China(Information Sciences)》 (中国科学:信息科学(英文版))

年 卷 期：2020年第63卷第8期

页      面：122-136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：supported by National Key Research and Development Program of China (Grant No. 2018YFA0306400) National Natural Science Foundation of China (Grant Nos. 61627820, 61675189, 61622506, 61822115) Anhui Initiative in Quantum Information Technologies (Grant No. AHY030000) 

主　　题：quantum key distribution quantum optics simulation modeling C++ 

摘      要：Quantum key distribution(QKD) provides a physical-based way to conciliate keys between remote users securely. Simulation is an essential method for designing and optimizing QKD systems. We develop a universal simulation framework based on quantum operator descriptions of photon signals and optical devices. The optical devices can be freely combined and driven by the photon excitation events,which make it appropriate for arbitrary QKD systems in principle. Our framework focuses on realistic characters of optical devices and system structures. The imperfections of the devices and the non-local properties of a quantum system are taken into account when modeling. We simulate the single-photon and Hong-Ou-Mandel(HOM) interference optical units, which are fundamental of QKD systems. The results using this event-driven framework agree well with the theoretical results, which indicate its feasibility for QKD.