Unidimensional continuous-variable quantum key distribution with discrete modulation

被引：9
|
作者：
Zhao, Wei [1 ]
Shi, Ronghua [1 ]
Feng, Yanyan [1 ]
Huang, Duan [1 ]
机构：
[1] Cent South Univ, Sch Comp Sci & Engn, Changsha 410083, Hunan, Peoples R China
来源：
PHYSICS LETTERS A | 2020年 / 384卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Continuous-variable quantum key distribution; Discrete modulation; Unidimensional; Heisenberg uncertainty relation;
D O I：
10.1016/j.physleta.2019.126061
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper, we proposed an unidimensional continuous-variable quantum key distribution (CV-QKD) protocol with discrete modulation, which waives the necessity in one of the quadrature modulations and further simplified the implementation of the CV-QKD protocol. On the basis of the Heisenberg uncertainty relation, we analyze the boundary between the unphysical and physical region. Besides, we utilize a novel proof approach to achieve a lower bound valid of transmission distance. This scheme shows an available method to further simplified the implementation of the QKD. (C) 2019 Elsevier B.V. All rights reserved.
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页数：7
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