Nonlinear dust acoustic waves in a charge varying complex plasma with nonthermal ions featuring Tsallis distribution |
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| Authors: | Moufida Benzekka and Mouloud Tribeche |
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| Abstract: | The concept of ion nonthermality is generalized within the theoretical framework of the Tsallis thermostatistics. In this
connection, a physically meaningful ion distribution function is outlined. As the nonextensive character of the nonthermal
ions increases, the distribution shoulders may become less or more prominent and high energy states are less or more probable
than in the extensive nonthermal case. Variable charge dust acoustic waves are then addressed. We first consider the case
of adiabatic dust charge variation and discuss later the case when the nonadiabatic charge variations are self-consistently
included. Our results may complement and provide new insight into previously published work in nonthermal space plasmas. |
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