Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials and School of Physics and Telecommunication Engineering South China Normal University Guangzhou 510006 China;
Center for Quantum Information Institute of Interdisciplinary Information Science Tsinghua University Beijing 100084 China;
Department of Physics State Key Laboratory of Surface Physics and Laboratory of Advanced Materials Fudan University Shanghai 200433 China;
Department of Physics and Center of Theoretical and Computational Physics The University of Hong Kong Hong Kong China;
National Laboratory of Solid State Microstructure and Department of Physics Nanjing University Nanjing 210093 China;