Information reconciliation of continuous-variables quantum key distribution: principles, implementations and applications

EPJ Quantum Technology

Review

Xiangyang Miao¹  Liuyong Cheng¹  Shenshen Yang¹  Zhilei Yan¹  Qing Lu²  Hongzhao Yang²  Zhenguo Lu²  Yongmin Li³ 

[1] College of Physics and Information Engineering, Shanxi Normal University, Taiyu Road, 030031, Taiyuan, Shanxi, China;State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Wucheng Road, 030006, Taiyuan, Shanxi, China;Collaborative Innovation Center of Extreme Optics, Shanxi University, Wucheng Road, 030006, Taiyuan, Shanxi, China;State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Wucheng Road, 030006, Taiyuan, Shanxi, China;Collaborative Innovation Center of Extreme Optics, Shanxi University, Wucheng Road, 030006, Taiyuan, Shanxi, China;Hefei National Laboratory, 230088, Hefei, China;

关键词: Quantum key distribution (QKD);    Continuous-variable;    Information reconciliation;    Error correction codes;    Hardware acceleration;    Rate-adaptive;   

DOI  :  10.1140/epjqt/s40507-023-00197-8

 received in 2023-06-30, accepted in 2023-09-20,  发布年份 2023

来源: Springer

【 摘 要 】

Quantum key distribution (QKD) can provide information-theoretically secure keys for two parties of legitimate communication, and information reconciliation, as an indispensable component of QKD systems, can correct errors present in raw keys based on error-correcting codes. In this paper, we first describe the basic knowledge of information reconciliation and its impact on continuous variable QKD. Then we introduce the information schemes and the corresponding error correction codes employed. Next, we introduce the rate-compatible codes, the hardware acceleration of the reconciliation algorithm, the research progress of information reconciliation, and its application in continuous variable QKD. Finally, we discuss the future challenges and conclude.

【 授权许可】

CC BY   
© Springer-Verlag GmbH Germany, part of Springer Nature 2023

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