Hybrid quantum private communication with continuous-variable and discrete-variable signals

The quantum key distribution （QKD） has been entering the practical application era. Subsequently, hybrid quantum private commu- nication with discrete-variable signals, continuous-variable signals, and classic optical signals becomes inevitable in the practical scenario. In this paper, we experiment...

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Bibliographic Details
Published inScience China. Physics, mechanics & astronomy Vol. 58; no. 2; pp. 14 - 20
Main Authors Liu, WeiQi, Peng, JinYe, Wang, Chao, Cao, ZhengWen, Huang, Duan, Lin, DaKai, Huang, Peng, Zeng, GuiHua
Format Journal Article
LanguageEnglish
Published Heidelberg Science China Press 01.02.2015
Springer Nature B.V
Subjects
Astronomy
China
Classical and Continuum Physics
Computer networks
Continuous fibers
Observations and Techniques
Optical communication
Physics
Physics and Astronomy
QKD
Quantum cryptography
信号混合
光信号
光纤通道
离散变量
连续变量
量子保密通信
量子密钥分配
020301
BB84 protocol
mutual influences
Gaussian-modulated CVQKD protocol
hybrid quantum private communication
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Summary:The quantum key distribution （QKD） has been entering the practical application era. Subsequently, hybrid quantum private commu- nication with discrete-variable signals, continuous-variable signals, and classic optical signals becomes inevitable in the practical scenario. In this paper, we experimentally investigated the mutual effects between the discrete-variable QKD （DVQKD） and the continuous-variable QKD （CVQKD） via a fiber channel. The experimental results show that the DVQKD will be influenced by the continuous-variable quantum signals and classic optical signals, while the CVQKD is not sensitive to the discrete-variable quantum signals.
Bibliography:11-5000/N
The quantum key distribution （QKD） has been entering the practical application era. Subsequently, hybrid quantum private commu- nication with discrete-variable signals, continuous-variable signals, and classic optical signals becomes inevitable in the practical scenario. In this paper, we experimentally investigated the mutual effects between the discrete-variable QKD （DVQKD） and the continuous-variable QKD （CVQKD） via a fiber channel. The experimental results show that the DVQKD will be influenced by the continuous-variable quantum signals and classic optical signals, while the CVQKD is not sensitive to the discrete-variable quantum signals.
hybrid quantum private communication, Gaussian-modulated CVQKD protocol, BB84 protocol, mutual influences
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-7348
1869-1927
DOI:10.1007/s11433-014-5632-9