Security of continuous-variable quantum key distribution with coarse-grained detector

Zhengyu Li, Yichen Zhang, Christian Weedbrook, and Hong Guo1∗ State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics Engineering and Computer Science, and Center for Quantum Information Technology, Peking University, Beijing 100871, China State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China and CipherQ, 10 Dundas St E, Toronto, M5B 2G9, Canada (Dated: April 2016)