论文标题
相反的极性尘埃等离子体系统中的灰尘声波静电和自我散发电势
Dust-acoustic wave electrostatic and self-gravitational potentials in an opposite polarity dusty plasma system
论文作者
论文摘要
考虑到相反的极性尘土灰尘等离子体系统（符合鲍尔茨曼法律遵循的几微米大小相反的极性灰尘物种和单一带电的离子物种）。通过对两个耦合的二阶非线性微分方程的数值分析，可以正确地发现尘埃声（DA）波静电和自我增殖电位的性质，用于与此相反极性灰尘等离子体介质中与DA波相关的静电和自我再生电位的数值分析。这些耦合的非线性微分方程来自阳性和负粉尘物种的连续性和动量方程，以及离子物种的Boltzmann定律。将DA波自我散发电位的基本特征与DA波静电势的基本特征进行了比较。提到了我们的结果与空间和实验室相反的极性尘土等离子体系统的相关性。
An opposite polarity dusty plasma system (containing a few micron size massive opposite polarity dust species and singly charged ion species following Boltzmann law) is considered. The nature of dust-acoustic (DA) wave electrostatic and self-gravitational potentials are correctly found by the numerical analysis of two coupled second-order nonlinear differential equations for electrostatic and self-gravitational potentials associated with the DA waves in such an opposite polarity dusty plasma medium. These coupled nonlinear differential equations are derived from the continuity and momentum equations for positive and negative dust species, and the Boltzmann law for ion species. The basic features of the DA wave self-gravitational potential are compared with that of the DA wave electrostatic potential. The relevance of our results to space and laboratory opposite polarity dusty plasma systems is mentioned.
