连续变量量子密钥分发技术研究进展OA

Quantum key distribution,as a new generation of communication technology,can achieve theoretically uncondi-tional secure communication processes.Quantum key distribution based on continuous variables has attracted widespread atten-tion due to its advantages of higher theoretical security bit rate,lower detection cost,and easier compatibility with existing op-tical communications.This article introduces the basic principles of continuous variable quantum key distribution,summarizes the Gaussian modulated coherent state protocol and the latest experimental progress,and looks forward to the future develop-ment of continuous variable quantum key distribution.