Open AccessInfluence of spectral anisotropy on the random walk of magnetic field lines
Author(s) -
Weinhorst B.,
Shalchi A.
Publication year - 2010
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2010.16709.x
Subject(s) - physics , anisotropy , random walk , magnetic field , statistical physics , line (geometry) , field (mathematics) , turbulence , diffusion , spectral line , computational physics , condensed matter physics , optics , quantum mechanics , mechanics , geometry , statistics , mathematics , pure mathematics
In the present paper we investigate theoretically the influence of spectral anisotropy on the random walk of magnetic field lines. We compute analytically the field line diffusion coefficients and explore quasi‐linear and non‐linear regimes. The key result of this paper is that spectral anisotropy is a very important effect since field line wandering behaves quite differently for the different turbulence anisotropy regimes.