1. Center for Theoretical Biological Physics, Rice University, Houston, Texas 77005, USA
2. Department of Chemistry, Rice University, Houston, Texas 77005, USA
3. College of Science, Guizhou Institute of Technology, Guiyang, Guizhou 550000, China
4. Department of Physics, Rice University, Houston, Texas 77005, USA
5. Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
6. Department of Mathematics and Computer Science, Freie Universität Berlin, Arnimallee 6, 14195 Berlin, Germany
7. Department of Computer Science and Engineering, Chalmers University of Technology, Göteborg, Sweden