Funding for this research was provided by:
Division of Physics (NSF Grant No. DMR-1506475)
National Natural Science Foundation of China (NSFC 11274192)
John Templeton Foundation (No. 39901)
Industry Canada
Ministry of Research and Innovation
Center of Mathematical Sciences and Applications, Harvard University
Article History
Received: 3 April 2016
Accepted: 9 July 2016
First Online: 22 September 2016