Balancing four-state continuous-variable quantum key distribution with linear optics cloning machine

被引：0

作者：

吴晓东 ^{[1
]}

廖骎 ^{[1
]}

黄端 ^{[1
,2
]}

吴湘华 ^{[1
]}

郭迎 ^{[1
,3
]}

机构：

[1] School of Information Science and Engineering, Central South University

[2] State Key Laboratory of Advanced Optical Communication Systems and Networks,Center of Quantum Information Sensing and Processing,Department of Electronic Engineering, Shanghai Jiao Tong University

[3] School of Engineering and Information Technology, University of New South Wales

来源：

Chinese Physics B | 2017年 / 11期

基金：

中国国家自然科学基金;

关键词：

four states; linear optics cloning machine; quantum key distribution;

D O I：

暂无

中图分类号：

O413 [量子论]; TN918.4 [密码的加密与解密];

学科分类号：

070201 ; 0839 ; 1402 ;

摘要：

We show that the secret key generation rate can be balanced with the maximum secure distance of four-state continuous-variable quantum key distribution(CV-QKD) by using the linear optics cloning machine(LOCM). Benefiting from the LOCM operation, the LOCM-tuned noise can be employed by the reference partner of reconciliation to achieve higher secret key generation rates over a long distance. Simulation results show that the LOCM operation can flexibly regulate the secret key generation rate and the maximum secure distance and improve the performance of four-state CV-QKD protocol by dynamically tuning parameters in an appropriate range.

引用

页码：101 / 107

页数：7

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