1. State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University, Beijing 100084, China
2. Department of Electrical Engineering & Computer Science, Massachusetts Institute of Technology, Cambridge 02139, United States
3. Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
4. Beijing Advanced Innovation Center for Future Chips (ICFC), Beijing 100084, China