1. CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
2. CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
3. The State Key Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
4. Hefei National Laboratory, University of Science and Technology of China, Hefei 230088, China
5. School of Biomedical Engineering and Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215123, China
6. School of Physics, Zhejiang University, Hangzhou 310027, China