南方科技大学知识苑(SUSTech KC): Sending-or-not-sending twin field quantum key distribution with imperfect vacuum sources

题名	Sending-or-not-sending twin field quantum key distribution with imperfect vacuum sources
作者	Hu, Xiao-Long 1; Jiang, Cong 2; Yu, Zong-Wen 3; Wang, Xiang-Bin 2,4,5,6
通讯作者	Wang, Xiang-Bin
发表日期	2022-06-01
DOI	10.1088/1367-2630/ac7347
发表期刊	NEW JOURNAL OF PHYSICS 影响因子和分区
ISSN	1367-2630
卷号	24 期号:6
摘要	The sending-or-not-sending (SNS) protocol of the twin-field (TF) quantum key distribution (QKD) can tolerant large misalignment error and its key rate can exceed the linear bound of repeaterless QKD. The original SNS protocol and all variants of TF-QKD require perfect vacuum sources, but in the real world experiments there is no practical perfect vacuum source. Instead, experimenters use extremely weak sources to substitute vacuum sources, which may break the security of the protocol. Here we propose an SNS protocol with imperfect vacuum sources and give the non-asymptotic decoy-state analysis of this protocol. Our numerical simulation shows that when the imperfect vacuum sources are close to perfect vacuum sources, our protocol can obtain similar key rate as that with perfect vacuum sources. This is the first result that closes the potential security loophole due to imperfect vacuum of TF-QKD.
关键词	quantum key distribution sending-or-not-sending protocol decoy state method imperfect vacuum source
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	通讯
资助项目	National Natural Science Foundation of China[12147107,11974204,12174215,12104184] ; Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics[KF202110]
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000810745200001
出版者	IOP Publishing Ltd
EI入藏号	20222612285915
EI主题词	Quantum theory
EI分类号	Quantum Theory; Quantum Mechanics:931.4
ESI学科分类	PHYSICS
来源库	Web of Science
引用统计	被引频次[WOS]：1
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/343068
专题	理学院_物理系量子科学与工程研究院
作者单位	1.Sun Yat Sen Univ, Sch Phys, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China 2.SAICT, Jinan Inst Quantum Technol, Jinan 250101, Peoples R China 3.Data Commun Sci & Technol Res Inst, Beijing 100191, Peoples R China 4.Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China 5.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China 6.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engnh, Phys Dept, Shenzhen 518055, Peoples R China
通讯作者单位	物理系; 量子科学与工程研究院
推荐引用方式 GB/T 7714	Hu, Xiao-Long,Jiang, Cong,Yu, Zong-Wen,et al. Sending-or-not-sending twin field quantum key distribution with imperfect vacuum sources[J]. NEW JOURNAL OF PHYSICS,2022,24(6).
APA	Hu, Xiao-Long,Jiang, Cong,Yu, Zong-Wen,&Wang, Xiang-Bin.(2022).Sending-or-not-sending twin field quantum key distribution with imperfect vacuum sources.NEW JOURNAL OF PHYSICS,24(6).
MLA	Hu, Xiao-Long,et al."Sending-or-not-sending twin field quantum key distribution with imperfect vacuum sources".NEW JOURNAL OF PHYSICS 24.6(2022).