Damping and dispersion of oscillating modes of a multicomponent ionic mixture in a magnetic field

G.A.Q. Salvati and L.G. Suttorp

Physica A: Statistical Mechanics and its Applications, 2006, vol. 371, issue 2, 387-408

Abstract: The collective-mode spectrum of a multicomponent magnetized ionic mixture for small wave number k is studied with the use of magnetohydrodynamics and formal kinetic theory. Apart from the usual thermal and diffusive modes, the spectrum contains a set of four oscillating modes. By evaluating the k2 contributions to the eigenfrequencies, the damping and the dispersion of these oscillating modes are determined. The long-range nature of the Coulomb interactions is shown to imply that Burnett terms with higher-order gradients in the linear phenomenological laws have to be taken into account in order to obtain a full description of all damping and dispersion effects.

Keywords: Magnetohydrodynamics; Ionic mixture; Kinetic theory (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:371:y:2006:i:2:p:387-408

DOI: 10.1016/j.physa.2006.04.014

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