Affiliation: | (1) Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, P.R. China;(2) Biophysics and Statistical Mechanics Group, Laboratory of Computational Engineering, Helsinki University of Technology, P. O. Box 9203, 02015 HUT, Finland;(3) Department of Physics, Fudan University, Shanghai, 200433, P.R. China;(4) Institute of Theoretical Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, P.R. China;(5) College of Information Science and Technology, East China Normal University, Shanghai, 200 062, P.R. China |