Non Gaussian and Non Local Transport in the Earth's Distant Magnetotail |
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Authors: | A Greco G Zimbardo P Veltri AL Taktakishvili LM Zelenyi |
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Institution: | (1) Physics Department, University of Calabria and Istituto Nazionale di Fisica della Materia, Unita' di Cosenza, I-87036 Arcavacata di Rende, Italy;(2) Abastumani Astrophysical Observatory, Tiblisi, Georgia;(3) Space Research Institute, Moscow, Russia |
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Abstract: | We study the ion dynamics in a magnetic field reversal with a constant electric field and with a model of three dimensional
magnetic turbulence. By computing the mean square displacements in the plane of the current sheet we find superdiffusive and
superballistic transport regimes. Since velocity increases with the length of the free path, we have accelerated Lévyflights.
The possibility to generate power law velocity distribution functions is pointed out, as well as the long memory effects and
non local properties of ion transport.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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