Secure communication using mesoscopic coherent states
Secure communication using mesoscopic coherent states
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DOI:
10.1103/physrevlett.90.227901
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发表时间:
2003-06-06
影响因子:
8.6
通讯作者:
Yuen, HP
中科院分区:
文献类型:
--
作者:
Barbosa, GA;Corndorf, E;Yuen, HP
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.