1. Hefei National Laboratory for Physical Sciences at the MicroscaleCAS Center for Excellence in Nanoscience, and CAS Key Laboratory of Mechanical Behavior and Design of MaterialsUniversity of Science & Technology of China Hefei Anhui 230026 P. R. China
2. Synergetic Innovation of Quantum Information & Quantum TechnologyUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China