The influence of the time delay through long trunk fiber on the phase-coding quantum key distribution system

被引：6

作者：

Wang Jin-Dong ^{[1
]}

Wei Zheng-Jun ^{[1
]}

Zhang Hui ^{[2
]}

Zhang Hua-Ni ^{[1
]}

Chen Shuai ^{[1
]}

Qin Xiao-Juan ^{[3
]}

Guo Jian-Ping ^{[1
]}

Liao Chang-Jun ^{[1
]}

Liu Song-Hao ^{[1
]}

机构：

[1] S China Normal Univ, Key Lab Photon Informat Technol, Guangdong Higher Educ Inst, Sch Informat & Optoelect Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China

[2] Artillery Acad Chinese Peoples Liberat Army, Phys Teaching & Res Sect, Hefei 230031, Peoples R China

[3] Guangdong Radio & TV Univ, Guangzhou 510091, Guangdong, Peoples R China

来源：

ACTA PHYSICA SINICA | 2010年 / 59卷 / 08期

关键词：

quantum key distribution; phase-encoding; time jitter; quantum bit error rate;

D O I：

10.7498/aps.59.5514

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Optical pulse will reach the receiver not at exact time instance due to the transmission through the long trunk fiber, and this phenomenon will effect on the bits error rate in the Quantum key distribution (QKD) system to some extend. The time jitter based on the differential phase shift quantum key distribution system and two asymmetric Mach-Zehnder interferometers is measured outdoors in different transmission distance and the physical model of the relationship between the time jitter and the quantum bit error rate is proposed. According to this relationship, the quantum bit error rate can be estimated for some optical pulse shape and some statistical distribution function.

引用

页码：5514 / 5522

页数：9

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