论文标题
电子等离子体中的静电粉尘声构造孤子
Electrostatic dust-acoustic envelope solitons in an electron depleted plasma
论文作者
论文摘要
已经通过使用还原性扰动方法来研究静电粉尘声波的传播及其调节不稳定性以及在电子静电构造的局部静电构造中的形成，这是通过电子脱落无效的尘埃式灰泥系统呈相反的极性粉尘和超级以上的粉尘涂层，并形成了一种标准的非线性schrödinger方程。相关的物理等离子体参数（即正极和负灰尘晶粒的电荷，质量，质量，数量密度以及阳性离子的超热等）具有严格的影响，以识别尘埃声波的稳定性条件。本研究对于理解与实验室和空间环境中尘埃声波相关的尘埃围膜孤子形成的机理很有用。
A standard nonlinear Schrödinger equation has been established by using the reductive perturbation method to investigate the propagation of electrostatic dust-acoustic waves, and their modulational instability as well as the formation of localized electrostatic envelope solitons in an electron depleted unmagnetized dusty plasma system comprising opposite polarity dust grains and super-thermal positive ions. The relevant physical plasma parameters (viz., charge, mass, number density of positive and negative dust grains, and super-thermality of the positive ions, etc.) have rigorous impact to recognize the stability conditions of dust-acoustic waves. The present study is useful for understanding the mechanism of the formation of dust-acoustic envelope solitons associated with dust-acoustic waves in the laboratory and space environments.
