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Cylindrical and spherical electron acoustic solitary waves with nonextensive hot electrons



Nonlinear propagation of cylindrical and spherical electron-acoustic solitons in an unmagnetized plasma consisting cold electron fluid, hot electrons obeying a nonextensive distribution and stationary ions, are investigated. For this purpose, the standard reductive perturbation method is employed to derive the cylindrical/spherical Korteweg-de-Vries equation, which governs the dynamics of electron-acoustic solitons. The effects of nonplanar geometry and nonextensive hot electrons on the behavior of cylindrical and spherical electron acoustic solitons are also studied by numerical simulations.



Physics of PlasmasAmerican Institute of Physics

Published: Aug 1, 2011

Keywords: Korteweg-de Vries equation; numerical analysis; plasma ion acoustic waves; plasma simulation; plasma solitons; plasma transport processes

DOI: 10.1063/1.3622207

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