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Weak turbulence in dusty plasmas with collisional dust charging : quasilinear wave-particle interaction

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Weak turbulence in dusty plasmas with collisional dust charging : quasilinear wave-particle interaction

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Título Weak turbulence in dusty plasmas with collisional dust charging : quasilinear wave-particle interaction
Autor Galvão, Renato Andrade
Ziebell, Luiz Fernando
Abstract Starting from the exact microscopic equations for an unmagnetized dusty plasma, where the dust charge is regarded as a new degree of freedom of the system, we present a self-consistent set of equations that is suitable for weak turbulence analyses, where we have considered that the dust is electrically charged by absorption of plasma particles through inelastic collisions. In the quasilinear limit of the wave-particle interaction, we find a modified equation for the spectral energy density of the plasma electric field, and two other equations of the spectral energy densities associated with the fluctuation of the dust distribution due to plasma particle absorption, and with the fluctuation of the dust charging current. Different dispersion relations are found respectively for each type of oscillation. The corresponding kinetic equations for the waves are given, as well as the temporal evolution equations of the dust and plasma particles.
Contido em Physical review. E, Statistical, nonlinear, and soft matter physics. Vol. 92, no. 2 (Aug. 2015), 023102, 12 p.
Assunto Plasmas empoeirados
Processos de colisao em plasmas
Relações de dispersão
Teoria cinetica de plasmas
Turbulência em plasmas
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/131382
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