DPS Quantum Key Distribution and Related Technologies

被引：1
|
作者：
Inoue, Kyo [1 ,2 ,3 ]
Takesue, Hiroki [2 ,3 ]
Honjo, Toshimori [2 ,3 ]
机构：
[1] Osaka Univ, 2-2 Yamadaoka, Suita, Osaka 5650871, Japan
[2] NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
[3] JST CREST, Tokyo 1020075, Japan
来源：
QUANTUM COMMUNICATIONS REALIZED II | 2009年 / 7236卷
关键词：
Quantum key distribution; coherent pulses; eavesdropping; SINGLE-PHOTON DETECTION; UP-CONVERSION;
D O I：
10.1117/12.808590
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A unique quantum key distribution (QKD) protocol, called DPS (differential-phase-shift) QKD, has been proposed and developed at NTT and Osaka University, which utilizes a coherent pulse train instead of individual photons as in traditional QKD protocols such as BB84. Its security is based on the fact that every phase difference of a highly-attenuated coherent pulse train cannot be fully measured. This protocol has features of simple setup, potential for a high key creation rate, and robustness against photon-number-splitting attack. This paper presents recent research activities on DPS-QKD.
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页数：9
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