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

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• 作者：WeiQi Liu (1) (2)
  JinYe Peng (1)
  Chao Wang (2)
  ZhengWen Cao (1)
  Duan Huang (2)
  DaKai Lin (2)
  Peng Huang (2)
  GuiHua Zeng (1) (2)
  
  1. College of Information Science and Technology ; Northwest University ; Xi鈥檃n ; 710127 ; China
  2. State Key Laboratory of Advanced Optical Communication Systems and Networks ; and Center of Quantum Information Sensing and Processing ; Shanghai Jiaotong University ; Shanghai ; 200240 ; China
  
• 关键词：hybrid quantum private communication ; Gaussian ; modulated CVQKD protocol ; BB84 protocol ; mutual influences ; 020301
• 刊名：SCIENCE CHINA Physics, Mechanics & Astronomy
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：58
• 期：2
• 页码：1-7
• 全文大小：617 KB
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• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Chinese Library of Science
  Mechanics, Fluids and Thermodynamics
  Physics
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1927

文摘

The quantum key distribution (QKD) has been entering the practical application era. Subsequently, hybrid quantum private communication 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.