Approaching the ideal quantum key distribution with two-intensity decoy states

doi:10.1103/PhysRevA.92.022332

	Approaching the ideal quantum key distribution with two-intensity decoy states
	Zhang, Chun-Hui 1,2; Luo, Sun-Long 3; Guo, Guang-Can 1,4; Wang, Qin 1,2,4
刊名	PHYSICAL REVIEW A
	2015-08-14
卷号	92 期号:2 页码:10
ISSN号	1050-2947
DOI	10.1103/PhysRevA.92.022332
英文摘要	We present a scheme for the practical decoy-state quantum key distribution with heralded single-photon source. In this scheme, only two-intensity decoy states are employed. However, its performance can approach the asymptotic case of using infinite decoy states. We compare it with the standard three-intensity decoy-state method, and through numerical simulations, we demonstrate its significant improvement over the three-intensity method in both the final key rate and the secure transmission distance. Furthermore, when taking statistical fluctuations into account, a very high key generation rate can still be obtained even at a long transmission distance.
资助项目	National Natural Science Foundation of China[11274178] ; National Natural Science Foundation of China[11311140250] ; National Natural Science Foundation of China[61475197] ; Priority Academic Program Development of Jiangsu Higher Education Institutions[YX002001] ; Scientific Research Foundation of Nanjing University of Posts and Telecommunications[NY212011]
WOS研究方向	Optics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000359486000002
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/20542]
专题	中国科学院数学与系统科学研究院
通讯作者	Wang, Qin
作者单位	1.Nanjing Univ Posts & Telecommun, Inst Signal Proc & Transmiss, Nanjing 210003, Jiangsu, Peoples R China 2.Nanjing Univ Posts & Telecommun, Minist Educ, Key Lab Broadband Wireless Commun & Sensor Networ, Nanjing 210003, Jiangsu, Peoples R China 3.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China 4.Univ Sci & Technol China, Key Lab Quantum Informat, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Chun-Hui,Luo, Sun-Long,Guo, Guang-Can,et al. Approaching the ideal quantum key distribution with two-intensity decoy states[J]. PHYSICAL REVIEW A,2015,92(2):10.
APA	Zhang, Chun-Hui,Luo, Sun-Long,Guo, Guang-Can,&Wang, Qin.(2015).Approaching the ideal quantum key distribution with two-intensity decoy states.PHYSICAL REVIEW A,92(2),10.
MLA	Zhang, Chun-Hui,et al."Approaching the ideal quantum key distribution with two-intensity decoy states".PHYSICAL REVIEW A 92.2(2015):10.