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Numerical study of the magnetic electron drift vortex mode turbulence in a nonuniform magnetoplasma
Department of Physics and Center for Space Plasma and Aeronomic Research (CSPAR), The University of Alabama in Huntsville, Huntsville, Alabama 35899, USA.
Umeå University, Faculty of Science and Technology, Department of Physics. (Institut für Theoretische Physik IV, Ruhr-Universität Bochum, D-44780 Bochum, Germany)
Umeå University, Faculty of Science and Technology, Department of Physics. (Institut für Theoretische Physik IV, Ruhr-Universität Bochum, D-44780 Bochum, Germany)
2009 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, ISSN 1063-651X, E-ISSN 1095-3787, Vol. 79, no 6, 066404-066410 p.Article in journal (Refereed) Published
Abstract [en]

Asimulation study of the magnetic electron drift vortex (MEDV) modeturbulence in a magnetoplasma in the presence of inhomogeneities inthe plasma temperature and density, as well as in theexternal magnetic field, is presented. The study shows that theinfluence of the magnetic field inhomogeneity is to suppress streamerlikestructures observed in previous simulation studies without background magnetic fields.The MEDV mode turbulence exhibits nonuniversal (non-Kolmogorov-type) spectra for differentsets of the plasma parameters. In the presence of aninhomogeneous magnetic field, the spectrum changes to a 7/3 powerlaw, which is flatter than without magnetic field gradients. Therelevance of this work to laser-produced plasmas in the laboratoryis briefly mentioned.

Place, publisher, year, edition, pages
American Physical Society , 2009. Vol. 79, no 6, 066404-066410 p.
Keyword [en]
drift instability, magnetic fields, plasma density, plasma magnetohydrodynamics, plasma production by laser, plasma simulation, plasma temperature, plasma turbulence
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-24982DOI: 10.1103/PhysRevE.79.066404OAI: oai:DiVA.org:umu-24982DiVA: diva2:228471
Available from: 2009-08-02 Created: 2009-08-02 Last updated: 2017-12-13Bibliographically approved

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Publisher's full texthttp://link.aps.org/doi/10.1103/PhysRevE.79.066404

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Eliasson, BengtShukla, Padma Kant

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Physical Review E. Statistical, Nonlinear, and Soft Matter Physics: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
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