1. Hefei National Laboratory for Physical Sciences at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China
2. Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, People's Republic of China
3. Anhui Laboratory of Advanced Photon Sciences and Technology, University of Science and Technology of China, Hefei 230026, People's Republic of China
4. School of Electronic Science and Applied Physics, and Lab of Solid State Microstructures and Quantum Control, Hefei University of Technology, Hefei 230009, People's Republic of China