https://doi.org/10.1140/epjqt/s40507-023-00197-8
Review
Information reconciliation of continuous-variables quantum key distribution: principles, implementations and applications
1
College of Physics and Information Engineering, Shanxi Normal University, Taiyu Road, 030031, Taiyuan, Shanxi, China
2
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Wucheng Road, 030006, Taiyuan, Shanxi, China
3
Collaborative Innovation Center of Extreme Optics, Shanxi University, Wucheng Road, 030006, Taiyuan, Shanxi, China
4
Hefei National Laboratory, 230088, Hefei, China
g
sxxymiao@126.com
h
yongmin@sxu.edu.cn
Received:
30
June
2023
Accepted:
20
September
2023
Published online:
6
October
2023
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.
Key words: Quantum key distribution (QKD) / Continuous-variable / Information reconciliation / Error correction codes / Hardware acceleration / Rate-adaptive
© The Author(s) 2023
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