Affiliation: | (1) College of Physical Science and Technology, Central China Normal University, Wuhan, Hubei, 430079, PR China;(2) The Chengdu Commanding College of Armed Police Force, Chengdu, Sichuan, 610213, PR China;(3) The Aba Teachers College, Aba, Sichuan, 623000, PR China;(4) The Zizhong Second Middle School, Zizhong, Sichuan, 641200, PR China;(5) Department of Physics, Institute of Theoretical Physics, China West Normal University, Nanchong, Sichuan, 637002, PR China |