1 School of Electronic and Information Engineering, Beihang University, Beijing 100191, China
2 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
3 School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China
4 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
5 Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China