1. Institute of Physics Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics P.O. Box 603 Beijing 100190 China
2. School of Physical Sciences University of Chinese Academy of Sciences Beijing 100049 China
3. Beijing Key Laboratory of Quantum Devices Key Laboratory for Physics and Chemistry of Nanodevices and Department of Electronics Peking University Beijing 100871 China
4. State Key Laboratory for Mesoscopic Physics Department of Physics Collaborative Innovation Center of Quantum Matter Peking University Beijing 100871 China
5. Collaborative Innovation Center of Extreme Optics Shanxi University Taiyuan 030006 China
6. State Key Laboratory of Surface Physics and Department of Physics and Key Laboratory of Micro and Nano‐Photonic Structures (Ministry of Education) Fudan University Shanghai 200433 China
7. Beijing Academy of Quantum Information Sciences Beijing 100193 China
8. Songshan Lake Materials Laboratory Dongguan 523808 China