Hybrid protocol for sending-or-not sending twin-field quantum key distribution

被引：5
|
作者：
Xu, Hai [1 ]
Hu, Xiao-Long [1 ]
Feng, Xun-Li [3 ]
Wang, Xiang-Bin [1 ,2 ,4 ]
机构：
[1] Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
[2] Univ Sci & Technol China, CAS Ctr Excellence & Synerget Innovat Ctr Quantum, Shanghai Branch, Shanghai 201315, Peoples R China
[3] Shanghai Normal Univ, Dept Phys, Shanghai 200234, Peoples R China
[4] SAICT, Jinan Inst Quantum Technol, Jinan 250101, Peoples R China
来源：
OPTICS LETTERS | 2020年 / 45卷 / 15期
基金：
中国国家自然科学基金;
关键词：
SECURITY;
D O I：
10.1364/OL.399137
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a hybrid protocol for sending-or-not-sending (SNS) twin-field quantum key distribution: replacing the signal source by heralded single-photon source (HSPS) in the original SNS protocol, while decoy sources are still unchanged. Numerical simulation shows that after adopting this HSPS, the performance in key rate and secure distance is much improved. (C) 2020 Optical Society of America
引用
收藏
页码：4120 / 4123
页数：4
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