Article

Plasma Investigations
2020. V. 58. № 6. P. 789–794
Zaman D.M.S., Mannan A., Chowdhury N.A., Mamun A.A.
Dust-acoustic rogue waves in an opposite polarity dusty plasma featuring non-extensive statistics
Annotation
Modulational instability of dust-acoustic waves, which propagate in an opposite polarity dusty plasma system containing inertial warm negatively and positively charged massive dust grains as well as nonextensive $q$-distributed electrons and ions has been theoretically investigated. The nonlinear Schro?dinger equation is derived by employing the reductive perturbation method. The nonlinear Schro?dinger equation predicts the conditions of the modulational instability ofdust-acoustic waves and the formation of dustacoustic rogue waves in a nonlinear and dispersive nonlinear Schro?dinger equation medium. It is observed that the basic features of the dust-acoustic rogue waves (viz., amplitude and width) are significantly modified by the various plasma parameters such as nonextensivity of electrons and ions, electron number density, electron temperature, ion number density, ion temperature, the mass and number density of the dust grains, etc. The application of the results in space and laboratory opposite polarity dusty plasma is briefly discussed.
Article reference:
Zaman D.M.S., Mannan A., Chowdhury N.A., Mamun A.A. Dust-acoustic rogue waves in an opposite polarity dusty plasma featuring non-extensive statistics, High Temp., 2020. V. 58. № 6. P. 789