Dust-acoustic wave modulation in the presence of q-nonextensive electrons and/or ions in dusty plasma

作者：Bains A S^*; Tribeche M; Ng C S

来源：Astrophysics and Space Science, 2013, 343(2): 621-628.

DOI：10.1007/s10509-012-1264-6

• Nonlinear Schrodinger equation
• Modulational instability
• Nonextensivity
• Tsallis statistical mechanics

A study is presented of the nonlinear self-modulation of low-frequency electrostatic dust acoustic waves (DAWs) propagating in a dusty plasma, within the theoretical framework of the nonextensive statistics proposed by Tsallis. Using the reductive perturbation method (RPM), the nonlinear Schrodinger equation (NLSE) which governs the modulational instability (MI) of the DAWs is obtained. The presence of the nonextensive electron/ion distribution is shown to influence the MI of the waves. Furthermore it is observed that nonextensive distributed ions has more effect on the MI of the DAW than electrons.

• 出版日期2013-2