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Plasma Physics and Controlled Fusion Volume 51 Number 12 Create an alert RSS this journal

L Palodhi et al 2009 Plasma Phys. Control. Fusion 51 125006 doi:10.1088/0741-3335/51/12/125006

Nonlinear kinetic development of the Weibel instability and the generation of electrostatic coherent structures

L Palodhi1, F Califano2 and F Pegoraro2

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Abstract References Cited By

The nonlinear evolution of the Weibel instability driven by the anisotropy of the electron distribution function in a collisionless plasma is investigated in a spatially one-dimensional configuration with a Vlasov code in a two-dimensional velocity space. It is found that the electromagnetic fields generated by this instability cause a strong deformation of the electron distribution function in phase space, corresponding to highly filamented magnetic vortices. Eventually, these deformations lead to the generation of short wavelength Langmuir modes that form highly localized electrostatic structures corresponding to jumps of the electrostatic potential.


PACS

52.35.Py Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.)

52.35.We Plasma vorticity

52.65.Ff Fokker-Planck and Vlasov equation

52.35.Mw Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.)

Subjects

Plasma physics

Dates

Issue 12 (December 2009)

Received 10 June 2009, in final form 28 September 2009

Published 29 October 2009



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