1 State Key Laboratory of Surface Physics, Key Laboratory of Micro- and Nano-Photonic Structures (Ministry of Education) and Department of Physics, Fudan University, Shanghai, China
2 State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics, Peking University, Beijing, China
3 College of Physics, Chongqing University, Chongqing, China
4 Institute for Nanoelectronic devices and Quantum computing, Fudan University, Shanghai, China
5 Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China
6 Shanghai Research Center for Quantum Sciences, Shanghai, China