1. College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, P.R. China
2. Center for Quantum Science and Technology, Nanchang 330022, P.R. China
3. School of Physical Science and Technology, Wuhan University, Wuhan 430072, P.R. China
4. Institute of Applied Physics and Materials Engineering, Faculty of Science and Technology, University of Macau, Macao SAR, China