(2+1)-Dimensional Electron Acoustic Solitary Waves with Electron Trapping and background Nonextensivity

P. Bala¹ , D. Vasudeva²

Section:Research Paper, Product Type: Journal-Paper
Vol.9 , Issue.4 , pp.25-31, Aug-2021

Online published on Aug 31, 2021

Copyright © P. Bala, D. Vasudeva . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The present study deals with the derivation of Kadomtsev-Petviashvili (KP) equation to study the propagation characteristics of electron acoustic waves in plasma regime containing cool electron fluid and hot trapped electrons within the nonextensive framework. The wave frequency is observed to decrease with non-extensive parameter q and is independent of nonisothermal character?. The nonlinear KP equation is developed by utilizing the appropriate stretched coordinates and a standard technique popularly known as Reductive Perturbation Method. Two dimensional electrostatic hump structures are obtained which are significantly modified by electron trapping (?) and background nonextensivity (q). It is further deduced that the soliton energy enhances due to electron trapping whereas it reduces in vicinity of nonextensive background. The effect of electron trapping and non-extensive electrons on width and wave amplitude has been presented and found that aforementioned distribution has significant effect on the solitary structures.

Key-Words / Index Term :
Electron acoustic waves, KP equation, Nonisothermal distribution, Nonextensive distribution

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