论文标题
电子中的尘埃围栏孤子子耗尽等离子体
Dust-acoustic envelope solitons in an electron depleted plasma
论文作者
论文摘要
通过在电子中耗尽的非线性schrödinger方程得出含有非扩张阳性离子的极性尘埃等离子体系统中的非线性schrödinger方程，对尘埃声波（DAW）的模块不稳定性（MI）进行了理论研究。已经研究了DAW的MI的条件和包膜孤子的形成。阳性离子的亚延伸性和超扩张性被认为改变了DAW的稳定和不稳定的参数状态。灰尘谷物的添加导致改变明亮和深色信封的宽度。这项研究的发现可能有助于了解火星大气，彗星尾巴，太阳系和实验室实验中DAW的非线性特征等。
A theoretical investigation of the modulational instability (MI) of dust-acoustic waves (DAWs) by deriving a nonlinear Schrödinger equation in an electron depleted opposite polarity dusty plasma system containing non-extensive positive ions has been presented. The conditions for MI of DAWs and formation of envelope solitons have been investigated. The sub-extensivity and super-extensivity of positive ions are seen to change the stable and unstable parametric regimes of DAWs. The addition of dust grains causes to change the width of both bright and dark envelope solitons. The findings of this study may be helpful to understand the nonlinear features of DAWs in Martian atmosphere, cometary tail, solar system, and in laboratory experiments, etc.
