Abstract

Linear and nonlinear propagation of electrostatic waves is studied in electron-depleted bi-ion plasmas where positive and negative ions have different masses and charge states. The two-fluid model is used. The Korteweg–de Vries equation is obtained using the reductive perturbation technique. The results of the numerical calculations show that in K–fullerene plasma for the experimentally obtained temperature limits of both ions only a negative polarity soliton structure is obtained. Potential structures for some useful alkali–fullerene plasmas are also illustrated. Finally, the exact technique of the Sagdeev pseudopotential is used to consider arbitrary amplitude (large-amplitude) solitons in K–fullerene plasma.

中文翻译：

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碱-富勒烯等离子体中静电波的非线性传播

摘要

在正负离子具有不同质量和电荷状态的贫电子双离子等离子体中研究了静电波的线性和非线性传播。使用两流体模型。使用还原摄动技术获得Korteweg-de Vries方程。数值计算结果表明，在K-富勒烯等离子体中，对于通过实验获得的两种离子的温度极限，只能获得负极性孤子结构。还说明了一些有用的碱-富勒烯等离子体的潜在结构。最后，使用Sagdeev伪势的精确技术来考虑K-富勒烯等离子体中的任意振幅（大振幅）孤子。