Twin-Field Quantum Key Distribution Protocol Based on Wavelength-Division-Multiplexing Technology

被引：5

作者：

Han, Yanxin ^{[1
,2
]}

Sun, Zhongqi ^{[1
,2
]}

Dou, Tianqi ^{[3
]}

Wang, Jipeng ^{[1
,2
]}

Li, Zhenhua ^{[1
,2
]}

Huang, Yuqing ^{[1
,2
]}

Li, Pengyun ^{[4
]}

Ma, Haiqiang ^{[1
,2
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China

[2] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China

[3] China Telecom Res Inst, Beijing 102209, Peoples R China

[4] China Elect Technol Grp Corp, China Acad Elect & Informat Technol, Beijing 100041, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2022年 / 39卷 / 07期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1088/0256-307X/39/7/070301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantum key distribution (QKD) generates information-theoretical secret keys between two parties based on the physical laws of quantum mechanics. Following the advancement in quantum communication networks, it becomes feasible and economical to combine QKD with classical optical communication through the same fiber using dense wavelength division multiplexing (DWDM) technology. This study proposes a detailed scheme of TF-QKD protocol with DWDM technology and analyzes its performance, considering the influence of quantum channel number and adjacent quantum crosstalk on the secret key rates. The simulation results show that the scheme further increases the secret key rate of TF-QKD and its variants. Therefore, this scheme provides a method for improving the secret key rate for practical quantum networks.

引用

页数：6

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