Abstract
The problem of the transversal spreading of the magnetic field lines in a turbulent plasma is investigated analytically in order to obtain a statistical characterization at large spatial scales. We develop a functional integral method which allows to calculate in a systematic way statistical averages of physical quantities which depend on the fluctuating field. The known magnetic diffusion coefficient for the shearless case is corrected with a term which arises from the assumption of a finite transversal correlation length. For the case with magnetic shear the functional method provides the appropriate frame for a perturbative approach based on series of diagrams.
Misguich, J H;
[1]
Spineanu, F;
Vlad, M
[2]
- Association Euratom-CEA, Centre d`Etudes de Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee
- Institutul de Fizica Atomica, Bucharest (Romania)
Citation Formats
Misguich, J H, Spineanu, F, and Vlad, M.
Non diffusive corrections to the long scale behavior of ensembles of turbulent magnetic field lines. Application of the functional method.
France: N. p.,
1993.
Web.
Misguich, J H, Spineanu, F, & Vlad, M.
Non diffusive corrections to the long scale behavior of ensembles of turbulent magnetic field lines. Application of the functional method.
France.
Misguich, J H, Spineanu, F, and Vlad, M.
1993.
"Non diffusive corrections to the long scale behavior of ensembles of turbulent magnetic field lines. Application of the functional method."
France.
@misc{etde_10130858,
title = {Non diffusive corrections to the long scale behavior of ensembles of turbulent magnetic field lines. Application of the functional method}
author = {Misguich, J H, Spineanu, F, and Vlad, M}
abstractNote = {The problem of the transversal spreading of the magnetic field lines in a turbulent plasma is investigated analytically in order to obtain a statistical characterization at large spatial scales. We develop a functional integral method which allows to calculate in a systematic way statistical averages of physical quantities which depend on the fluctuating field. The known magnetic diffusion coefficient for the shearless case is corrected with a term which arises from the assumption of a finite transversal correlation length. For the case with magnetic shear the functional method provides the appropriate frame for a perturbative approach based on series of diagrams.}
place = {France}
year = {1993}
month = {Feb}
}
title = {Non diffusive corrections to the long scale behavior of ensembles of turbulent magnetic field lines. Application of the functional method}
author = {Misguich, J H, Spineanu, F, and Vlad, M}
abstractNote = {The problem of the transversal spreading of the magnetic field lines in a turbulent plasma is investigated analytically in order to obtain a statistical characterization at large spatial scales. We develop a functional integral method which allows to calculate in a systematic way statistical averages of physical quantities which depend on the fluctuating field. The known magnetic diffusion coefficient for the shearless case is corrected with a term which arises from the assumption of a finite transversal correlation length. For the case with magnetic shear the functional method provides the appropriate frame for a perturbative approach based on series of diagrams.}
place = {France}
year = {1993}
month = {Feb}
}