Differential phase shift quantum key distribution

被引：384
作者：
Inoue, K [1 ]
Waks, E
Yamamoto, Y
机构：
[1] NTT Corp, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
[2] Stanford Univ, EL Ginzton Lab, Stanford, CA 94305 USA
来源：
PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 03期
关键词：
D O I：
10.1103/PhysRevLett.89.037902
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A novel quantum cryptography scheme is proposed, in which a single photon is prepared in a linear superposition state of three basis kets. A photon split to three pulses is sent from Alice to Bob, where the phase difference between sequential two pulses carries bit information. Bob measures the phase difference by passive differential phase detection. This scheme is suitable for fiber transmission systems and offers a key creation efficiency higher than conventional fiber-based BB84.
引用
收藏
页码：379021 / 379023
页数：3
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