Prof. J. H. Wu
School of Physics and Center for Quantum Sciences Northeast Normal University
Renmin Street 5268, Changchun 130024 (China)

E-mail: jhwu@nenu.edu.cn.

Prof. Maurizio Artoni
Department of Engineering and Information Technology
University of Brescia,
Via Valotti, 9
25133 BRESCIA, Italy

E-mail: maurizio.artoni@unibs.it.