Ion-Acoustic Higher Order Non-Linear Structures in Quantum Dusty Plasma

Md Manir Hossain, Monirul Hasan, Md A saduzzaman, Md Mahfuzul Haque

Department of Electrical and Electronic Engineering, Bangladesh University of Business and Technology, Dhaka, Bangladesh.
Institute of Natural Science, United International University, Dhaka, Bangladesh.

DOI: 10.4236/jmp.2013.411187                

Abstract

The prominent features of higher order nonlinear ion-acoustic waves involving quantum corrections in an unmagnetized quantum dusty plasma are revisited with the theoretical framework of Hossain et al. [1]. The fluid model is demonstrated here by its constituent inertial ions, Fermi electrons with quantum effect, and immovable dust grain with negative charge. We have used the ideology of Gardner equation. The well-known RPM method is employed to derive the equation. Indeed, the basic features of quantum dust ion-acoustic Gardner solitons (GSs) are pronounced here. GSs are shown to exist for the value of dust to ion ratio around 2/3 which is valid for space plasma [2], and are different from those of K-dV (Korteweg-de Vries) solitons, which do not exist for the value around 2/3. The implications of our results are suitable for cosmological and astrophysical environments.

Keywords

Negative Dust; Quantum Plasma; Fermi Electron; Modified K-dV Equation; Gardner Solitons; RPM

Conflicts of Interest

The authors declare no conflicts of interest.

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