Abstract

The action of the light pressure force on a bounded region of a 2D system of dust macroparticles is simulated using the molecular dynamics method. The dynamics of dust macroparticles in the quasi-2D structure (trajectories of particles, their mean square displacement, and kinetic energy) is analyzed for various values of the nonideality parameter and laser radiation power. It is shown that by varying the radiation power, it is possible to influence the self-diffusion processes and the value of chaotic velocity of particles. Analysis is performed for different initial values of the nonideality parameter of the unperturbed dust subsystem. It is found that the interparticle interaction results in an increase in the kinetic energy of particles in the region of action, as well as beyond it.

中文翻译：

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定向二维作用下准二维尘埃-等离子体系统中宏观粒子的动力学：模拟结果

摘要

使用分子动力学方法模拟了轻压力对粉尘大颗粒二维系统边界区域的作用。对于非理想参数和激光辐射功率的各种值，分析了准二维结构中尘埃宏观粒子的动力学（粒子的轨迹，其均方位移和动能）。结果表明，通过改变辐射功率，有可能影响自扩散过程和粒子混沌速度的值。对未扰动的尘埃子系统的非理想参数的不同初始值进行分析。发现颗粒间的相互作用导致作用区域内以及超出作用区域的颗粒的动能增加。