Advances in continuous variable measurement-device-independent quantum key distribution

Advances in continuous variable measurement-device-independent quantum key distribution

연구 분야: Cryptography

학회: Science China Information Sciences

Continuous variable quantum key distribution (CV-QKD), utilizes continuous variables encoding such as the quadrature components of the quantized electromagnetic field and coherent detection decoding, offering good compatibility with the existing telecommunications technology and components. Continuous variable measurement-device-independent QKD (CV-MDI-QKD) can eliminate all the security threats arising from the receiver effectively, the crucial security loophole of CV-QKD implementations. Recently, CV-MDI-QKD has attracted extensive attention and witnessed rapid progress. Here, we review the achievements that have been made in the field of CV-MDI-QKD, including the basic principle, advancements in theoretical protocols, and experimental demonstrations. Finally, we discuss the challenges faced in practical applications and future research directions.