南方科技大学知识苑(SUSTech KC): Composable security for practical quantum key distribution with two way classical communication

题名	Composable security for practical quantum key distribution with two way classical communication
作者	Jiang，Cong 1,2; Hu，Xiao Long 3; Yu，Zong Wen 1,4; Wang，Xiang Bin 1,2,5,6,7
发表日期	2021-06-01
DOI	10.1088/1367-2630/ac0285
发表期刊	NEW JOURNAL OF PHYSICS 影响因子和分区
ISSN	1367-2630
卷号	23 期号:6
摘要	We present a theory for the composable security of sending-or-not-sending (SNS) protocol of twin field quantum key distribution (TF-QKD). We present methods to strictly calculate the finite-key effects in QKD with error rejection through two-way classical communication (TWCC) for SNS TF-QKD protocol. Unlike the normal QKD without TWCC, here the probability of tagging or untagging for each two-bit random group is not independent. We rigorously solve this problem by imagining a virtual set of bits where every bit is independent and identical. With explicit formulas, we show that simply applying Chernoff bound in the calculation gives correct key rate, but the failure probability changes a little bit. We calculate the key rate with strict bounds and security, and obtain key rates by far breaking the PLOB (Pirandola, Laurenza, Ottaviani, and Banchi) bound with composable security.
关键词	composable security QKD quantum key distribution SNS TWCC
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
学校署名	其他
WOS记录号	WOS:000661269500001
EI入藏号	20212610573154
EI主题词	Physics ; Research
EI分类号	Engineering Research:901.3
ESI学科分类	PHYSICS
Scopus记录号	2-s2.0-85108806144
来源库	Scopus
引用统计	被引频次[WOS]：20
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/230191
专题	理学院_物理系量子科学与工程研究院
作者单位	1.State Key Laboratory of Low Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing,100084,China 2.Jinan Institute of Quantum Technology,Jinan,SHANDONG,250101,China 3.School of Physics,State Key Laboratory of Optoelectronic Materials and Technologies,Sun Yat-sen University,Guangzhou,510275,China 4.Data Communication Science and Technology Research Institute,Beijing,100191,China 5.Shanghai Branch,CAS Center for Excellence,Synergetic Innovation Center in Quantum Information and Quantum Physics,University of Science and Technology of China,Shanghai,201315,China 6.Shenzhen Institute for Quantum Science and Engineering,Physics Department,Southern University of Science and Technology,Shenzhen,518055,China 7.Frontier Science Center for Quantum Information,Beijing,China
推荐引用方式 GB/T 7714	Jiang，Cong,Hu，Xiao Long,Yu，Zong Wen,et al. Composable security for practical quantum key distribution with two way classical communication[J]. NEW JOURNAL OF PHYSICS,2021,23(6).
APA	Jiang，Cong,Hu，Xiao Long,Yu，Zong Wen,&Wang，Xiang Bin.(2021).Composable security for practical quantum key distribution with two way classical communication.NEW JOURNAL OF PHYSICS,23(6).
MLA	Jiang，Cong,et al."Composable security for practical quantum key distribution with two way classical communication".NEW JOURNAL OF PHYSICS 23.6(2021).