Quantum cryptography with direct coding of the bi-photon light

被引：1
|
作者：
Usenko, Constantin V. [1 ]
机构：
[1] TG Shevchenko Natl Univ, UA-01680 Kiev, Ukraine
来源：
JOURNAL OF RUSSIAN LASER RESEARCH | 2012年 / 33卷 / 03期
关键词：
quantum cryptography; entanglement; bi-photon light; quantum tomography; homodyne detection; heterodyne detection;
D O I：
10.1007/s10946-012-9283-x
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A set of protocols for direct coding/decoding of the bi-photon light is proposed. Security of the protocols is provided by the possibility of obtaining information on the presence/absence of unauthorized intervention in the process of information transfer from the results of measurements for the channel states. Coding is realized by introducing an additional unbalance of the phases of two bi-photon light beams, and decoding is realized by heterodyne detection of quadratures of the bi-photon light followed by calculation of correlations of the quadratures.
引用
收藏
页码：283 / 292
页数：10
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