Finite-size analysis of eight-state continuous-variable quantum key distribution with the linear optics cloning machine*

Project supported by the National Natural Science Foundation of China (Grant Nos. 61379153 and 61572529).

Zhang Hang, Mao Yu, Huang Duan, Guo Ying, Wu Xiaodong, Zhang Ling
       

(color online) Numerical analysis of secret key rates based on the comparison between the LOCM-CVQKD protocol and the OA protocol, where VA = 0.25, η = 0.6, υel = 0.05, β = 0.95, the two parameters of LOCM are λ = 0.3 and τ = 0.45, and the parameter g = 20. Solid curves mean the OA eight-state protocol, and the dashed curves represent the scenario with an LOCM.