复杂等离子体带电颗粒的稳态分布特性研究

Study on the Steady Distribution of Charged Particles in Dusty Plasmas

开展复杂等离子体中带电尘埃颗粒运动的动力学性质研究,对于揭示带电粒子间的静电相互作用的行为规律具有重要意义.在一定相互作用势情况下,基于分子动力学方法获得初始温度和浓度对复杂等离子体中带电颗粒的稳态位形分布的影响.数值模拟结果表明,带电颗粒的初始浓度对其稳态的位形分布有重要的影响.为了进一步分析不同浓度下的位形特征,对系统的静态结构因子进行了讨论,更详细地反映出各种位形呈现的相分布.

Conducting research about charged dust particle＇s dynamics property in dusty plasma is very important for revealing movement regulation of charged particle caused by interaction. Based on MD method, the stable distribution of charged particle influenced by initial temperature and initial density in dusty plasma was got. From the results of numerical simulation, we found that the initial temperature and density have important influences on the distribution of the steady state. In order to further analysis configuration property under various densities, we also discussed the system static structure factor. It reflects phase of distribution of charged grains in more detail.