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Key Rate of Practical Quantum Communication Network

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【Author】 Na Huang;Rong-Zhen Jiao;School of Science, Beijing University of Posts and Telecommunications;

【机构】 School of Science, Beijing University of Posts and Telecommunications；

【摘要】 The security properties of quantum key distribution(QKD) system are analyzed with the practical light source using decoy state method. The secure key rate with the change of transmission distance is computed under the condition of ideal system, infinite light source system, untrusted light source and passive system. The influence of the fluctuation of transmission rate on the security characteristics of the system is discussed. Our numerical simulation results offer a useful reference for the practical QKD experiment.更多还原

【Abstract】 The security properties of quantum key distribution(QKD) system are analyzed with the practical light source using decoy state method. The secure key rate with the change of transmission distance is computed under the condition of ideal system, infinite light source system, untrusted light source and passive system. The influence of the fluctuation of transmission rate on the security characteristics of the system is discussed. Our numerical simulation results offer a useful reference for the practical QKD experiment.更多还原

【关键词】 quantum key distribution； decoy state； untrusted source； statistical fluctuation；
【Key words】 quantum key distribution； decoy state； untrusted source； statistical fluctuation；

【基金】 Supported by the National Natural Science Foundation of China under Grant No.61571060;Ministry of Science and Technology of China under Grant No.2016YFA0301300

【文献出处】 Communications in Theoretical Physics ,理论物理通讯(英文版) , 编辑部邮箱 ,2017年08期

【分类号】O413;TN918
【被引频次】1
【下载频次】11

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