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
Yuen, HP
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Barbosa, GA;Corndorf, E;Yuen, HP

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我们在理论上和实验上证明了使用中间能(介镜)相干状态使用的安全通信。我们的方案与以前的量子密码方案不同,因为一个简短的秘密键被明确使用,其中量子噪声均隐藏了位和钥匙。该加密方案允许光学放大。新的途径开放,可以在光纤或自由空间通道中以高速通信确保通信。
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.