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