title: Magnetic-field-line random walk in turbulence: a two-point correlation function description.
abstract: The standard theory of field-line random walk is based on the description of turbulence in the wave number space. The latter description takes into account the details of turbulence at small scales. Such details, however, are not important in the theory of random walking magnetic field lines. In the present paper we therefore use simple decorrelation models to estimate the field-line diffusion coefficient. Previous results are recovered as special limits. It is shown that a full analytical description is possible and that the only parameter controlling the field-line diffusion coefficient is the Kubo number.
authors.affiliation: Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2. andreasm4@yahoo.com
authors.forename: A
authors.initials: A
authors.lastname: Shalchi
authors.forename: A
authors.initials: A
authors.lastname: Dosch
authors.forename: J A
authors.initials: JA
authors.lastname: le Roux
authors.forename: G M
authors.initials: GM
authors.lastname: Webb
authors.forename: G P
authors.initials: GP
authors.lastname: Zank