Structure of Multi-Species Charged-Particles with Competing Interactions in a Quadratic Trap
LIU Yan-Hong1,2, CHEN Bao-Xin3, WANG Long2
1Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
2Institute of Physics, Chinese Academy of Sciences, 100080 Beijing
3School of Science, Zhejiang University of Science and Technology, Hangzhou 310023
Structure of Multi-Species Charged-Particles with Competing Interactions in a Quadratic Trap
LIU Yan-Hong1,2;CHEN Bao-Xin3;WANG Long2
1Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
2Institute of Physics, Chinese Academy of Sciences, 100080 Beijing
3School of Science, Zhejiang University of Science and Technology, Hangzhou 310023
Abstract： Multi-species charged-particles interacting with each other by a competing short-range attraction and long-range repulsion potential confined in a quadratic trap are studied with molecular dynamics simulations. It is found that particles with similar mass-to-charge ratio tend to populate a common shell, whose location depends on the particle mass-to-charge ratio, and that the greater the latter is, the closer the particles to the centre of the trap are. This rule for the ground-state configuration is independent of the total particle and species numbers in the system.
LIU Yan-Hong;CHEN Bao-Xin;WANG Long. Structure of Multi-Species Charged-Particles with Competing Interactions in a Quadratic Trap[J]. 中国物理快报, 2006, 23(6): 1540-1543.
LIU Yan-Hong, CHEN Bao-Xin, WANG Long. Structure of Multi-Species Charged-Particles with Competing Interactions in a Quadratic Trap. Chin. Phys. Lett., 2006, 23(6): 1540-1543.
2006, Vol. 23 
