Random walk of magnetic field lines: Subdiffusive,diffusive, and superdiffusive regimes |
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| Authors: | A Shalchi B Weinhorst |
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| Institution: | Institut für Theoretische Physik, Lehrstuhl IV: Weltraum- und Astrophysik, Ruhr-Universität Bochum, D-44780 Bochum, Germany |
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| Abstract: | One- and two-dimensional models of magnetic field fluctuations and turbulence are widely used in space-, astrophysical, and laboratory contexts. In the present article we use a generalized form of the turbulence wave spectrum to calculate field line diffusion coefficients analytically and numerically. General conditions are derived for which field line wandering behaves subdiffusively, diffusively, and superdiffusively. |
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| Keywords: | Diffusion Magnetic fields Turbulence |
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