Dressed ion-acoustic soliton in a plasma with electrons featuring Tsallis distribution

Rabia Amour, Leila Ait Gougam and Mouloud Tribeche

Physica A: Statistical Mechanics and its Applications, 2015, vol. 436, issue C, 856-864

Abstract: Ion-acoustic dressed solitons are addressed in a three component electron–positron–ion plasma with nonextensive electrons. The approach based on the expansion of the Sagdeev potential up to the fourth-order is used. This approach yields the same dressed ion-acoustic soliton solution given by the renormalization procedure in the reductive perturbation method. The dressed soliton is then split into two contributions, the core and cloud structures, and compared to the Korteweg–de Vries (K–dV) ion-acoustic soliton solution. Our results reveal that the main quantities of these localized structures are significantly modified by the nonextensive effects. In particular, the departure between the dressed and K–dV solitons becomes much marked as the nonextensive parameter q (q<1) increases.

Keywords: Pair-plasma; Dressed soliton; Nonextensive electrons (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:436:y:2015:i:c:p:856-864

DOI: 10.1016/j.physa.2015.05.050

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