1. Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
2. Condensed Matter Theory Center and Joint Quantum Institute, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
3. Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Shanghai 200240, China
4. Shanghai Branch, Hefei National Laboratory, Shanghai 201315, China