Analysis of differential-phase-shift keying protocol for a two-way quantum-key-distribution system

被引：6

作者：

Rong-Zhen, Jiao ^{[1
]}

Chen-Xu, Feng ^{[1
]}

机构：

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

来源：

ACTA PHYSICA SINICA | 2008年 / 57卷 / 02期

关键词：

differential-phase-shift keying protocol; quantum efficiency; communication rate;

D O I：

10.7498/aps.57.685

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The performance of a two-way quantum-key-distribution (QKD) system are analyzed using the differential-phase-shift keying (DPSK) protocol. The comparison is based on the secure communication rate as a function of distance for three QKD protocols: the Bennett-Brassard 1984, the Bennett-Brassard-Mermin 1992, and the coherent differential-phase-shift keying protocols. We discussed the security of DPSK protocol against any type of individual photon splitting attack and concluded that the simple and efficient DPSK protocol allows for more than 200 km of secure communication distance with high communication rates.

引用

页码：685 / 688

页数：4

共 6 条

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