1. State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
2. Frontier Science Center for Quantum Information, Tsinghua University, Beijing 100084, China
3. School of Materials Science and Engineering, The State Key Laboratory of New Ceramics and Fine Processing, MOE Key Laboratory of Advanced Materials, Tsinghua University, Beijing 100084, China
4. School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
5. Lawrence Berkeley National Laboratory, Cyclotron Road, Berkeley, California 94720, United States
6. Collaborative Innovation Center of Quantum Matter, Beijing 100084, China