【摘要】 连续变量量子密钥分发能够为合法通信双方提供信息理论上无条件安全的密钥,在信息安全领域有着广泛的应用前景,其中数据后处理单元是连续变量量子密钥分发系统中不可或缺的组成部分。首先阐述了连续变量量子密钥分发数据后处理的两个子过程(数据协调和私密放大)在系统中的重要作用及其对系统的影响;然后阐述了两个子过程的基本原理、主要方案和相关研究进展;最后讨论了数据后处理未来的技术发展路线。更多还原

【Abstract】 Continuous-variable quantum key distribution( CV-QKD) can share information-theoretical secure keys between two parties over an insecure quantum channel. It has wide range of application prospects in the field of information security. The data post-processing unit is an indispensable part of the CV-QKD system. This article first explains the important role of the two sub-processes( data reconciliation and privacy amplification) of the postprocessing and its impact on the system; then it introduces the basic principles,main schemes,and related research progress of the two sub-processes,respectively. Finally,the future technical development route of the data postprocessing is discussed.更多还原