Funding for this research was provided by:
National Natural Science Foundation of China (No.11372122, 11274393)
National Natural Science Foundation of China (11574404, 1275279)
The Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China (No.Y4KF201CJ1;)
National Basic Research Program of China (2013CB933601)
Article History
Received: 29 March 2018
Accepted: 10 September 2018
First Online: 18 September 2018