College of Electronic Engineering Guangxi Normal University Guilin 541004 China;
College of Information Engineering East China Jiao Tong University Nanchang 330013 China;
College of Electronic Engineering Guangxi Normal University Guilin 541004 China;
College of Electronic Engineering Guangxi Normal University Guilin 541004 China;
Department of Physics Tsinghua University Beijing 100084 China;
Beijing Academy of Quantum Information Sciences Beijing 100193 China;
Frontier Science Center for Quantum Information Beijing 100084 China;