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arXiv · 1809.08600

Electrostatic rogue waves in double pair plasmas

N. Ahmed·A. Mannan·N. A. Chowdhury·A. A. Mamun
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Abstract

A nonlinear Schrödinger equation is derived to investigate the modulational instability (MI) of ion-acoustic (IA) waves (IAWs) in a double pair plasma system containing adiabatic positive and negative ion fluids along with super-thermal electrons and positrons. The analytical analysis predicts two types of modes, viz. fast ($ω_f$) and slow ($ω_s$) IA modes. The possible stable and unstable parametric regions for the IAWs in presence of external perturbation can be observed for both $ω_f$ and $ω_s$. The number density of the negative ions and positrons play a vital role in generating the IA rogue waves (IARWs) in the modulationally unstable region. The applications of our present work in astrophysical environments [viz. D-region ($\rm H^+, O_2^-$) and F-region ($\rm H^+, H^-$) of the Earth's ionosphere] as well as in laboratory plasmas [viz. pair-ion Fullerene ($\rm C^+, C^-$)] are pinpointed.

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N. Ahmed, A. Mannan, N. A. Chowdhury, A. A. Mamun. 2018-09-23. Electrostatic rogue waves in double pair plasmas. https://doi.org/10.1063/1.5061800

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