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

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Abstract

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 Schrödinger 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.

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Acknowledgements

This work is supported in part by a National Science Foundation Grant PHY-1004357 and by the National Science Foundation of China NSFC under Grant No. 41128004.

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Correspondence to A. S. Bains.

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Bains, A.S., Tribeche, M. & Ng, C.S. Dust-acoustic wave modulation in the presence of q-nonextensive electrons and/or ions in dusty plasma. Astrophys Space Sci 343, 621–628 (2013). https://doi.org/10.1007/s10509-012-1264-6

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  • DOI: https://doi.org/10.1007/s10509-012-1264-6

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