南方科技大学知识苑(SUSTech KC): Sending-or-not-sending twin-field quantum key distribution in practice

题名	Sending-or-not-sending twin-field quantum key distribution in practice
作者	Yu, Zong-Wen 1,2; Hu, Xiao-Long 1; Jiang, Cong 1; Xu, Hai 1; Wang, Xiang-Bin 1,3,4,5
通讯作者	Wang, Xiang-Bin
发表日期	2019-02-28
DOI	10.1038/s41598-019-39225-y
发表期刊	Scientific Reports 影响因子和分区
ISSN	2045-2322
卷号	9
摘要	Recently, the twin field quantum key distribution (TF-QKD) protocols have been investigated extensively. In particular, an efficient protocol for TF-QKD with sending or not sending the coherent state has been given in. Here in this paper, we present results of practical sending-or-not-sending (SNS) twin field quantum key distribution. In real-life implementations, we need consider the following three requirements, a few different intensities rather than infinite number of different intensities, a phase slice of appropriate size rather than infinitely small size and the statistical fluctuations. We first show the decoy-state method with only a few different intensities and a phase slice of appropriate size. We then give a statistical fluctuation analysis for the decoy-state method. Numerical simulation shows that, the performance of our method is comparable to the asymptotic case for which the key size is large enough. Our method can beat the PLOB bound on secret key capacity. Our results show that practical implementations of the SNS quantum key distribution can be both secure and efficient.
相关链接	[来源记录]
收录类别	SCI
语种	英语
学校署名	通讯
资助项目	National Natural Science Foundation of China[11474182] ; National Natural Science Foundation of China[11774198] ; National Natural Science Foundation of China[U1738142]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000459897600014
出版者	NATURE PUBLISHING GROUP
来源库	Web of Science
引用统计	被引频次[WOS]：75
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/26379
专题	理学院_物理系
作者单位	1.Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China 2.Data Commun Sci & Technol Res Inst, Beijing 100191, Peoples R China 3.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China 4.Shandong Acad Informat & Commun Technol, Jinan 250101, Shandong, Peoples R China 5.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
通讯作者单位	物理系
推荐引用方式 GB/T 7714	Yu, Zong-Wen,Hu, Xiao-Long,Jiang, Cong,et al. Sending-or-not-sending twin-field quantum key distribution in practice[J]. Scientific Reports,2019,9.
APA	Yu, Zong-Wen,Hu, Xiao-Long,Jiang, Cong,Xu, Hai,&Wang, Xiang-Bin.(2019).Sending-or-not-sending twin-field quantum key distribution in practice.Scientific Reports,9.
MLA	Yu, Zong-Wen,et al."Sending-or-not-sending twin-field quantum key distribution in practice".Scientific Reports 9(2019).