Secure communication using mesoscopic coherent states

被引：173

作者：

Barbosa, GA ^{[1
]}

Corndorf, E ^{[1
]}

Kumar, P ^{[1
]}

Yuen, HP ^{[1
]}

机构：

[1] Northwestern Univ, Dept Elect & Comp Engn, Ctr Photon Commun & Comp, Evanston, IL 60208 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.90.227901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate theoretically and experimentally that secure communication using intermediate-energy (mesoscopic) coherent states is possible. Our scheme is different from previous quantum cryptographic schemes in that a short secret key is explicitly used and in which quantum noise hides both the bit and the key. This encryption scheme allows optical amplification. New avenues are open to secure communications at high speeds in fiber-optic or free-space channels.

引用

页数：4

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