1. State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
2. Institute for Nanoelectronics Devices and Quantum Computing, Fudan University, Shanghai 200433, China
3. Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China
4. Shanghai Qi Zhi Institute, Shanghai 200232, China
5. Shanghai Research Center for Quantum Sciences, Shanghai 201315, China