A continuous variable quantum deterministic key distribution based on two-mode squeezed states

被引：80
作者：
Gong, Li-Hua [1 ]
Song, Han-Chong [1 ]
He, Chao-Sheng [2 ]
Liu, Ye [1 ]
Zhou, Nan-Run [1 ,3 ]
机构：
[1] Nanchang Univ, Dept Elect Informat Engn, Nanchang 330031, Peoples R China
[2] Nanchang Mil Acad, Sect Management Teaching & Res, Nanchang 330103, Peoples R China
[3] Beijing Univ Posts & Telecommun, Informat Secur Ctr, Beijing 100876, Peoples R China
来源：
PHYSICA SCRIPTA | 2014年 / 89卷 / 03期
基金：
中国国家自然科学基金;
关键词：
continuous variable; quantum key distribution; deterministic key; two-mode squeezed state;
D O I：
10.1088/0031-8949/89/03/035101
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The distribution of deterministic keys is of significance in personal communications, but the existing continuous variable quantum key distribution protocols can only generate random keys. By exploiting the entanglement properties of two-mode squeezed states, a continuous variable quantum deterministic key distribution (CVQDKD) scheme is presented for handing over the pre-determined key to the intended receiver. The security of the CVQDKD scheme is analyzed in detail from the perspective of information theory. It shows that the scheme can securely and effectively transfer pre-determined keys under ideal conditions. The proposed scheme can resist both the entanglement and beam splitter attacks under a relatively high channel transmission efficiency.
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页数：6
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