ANOMALOUS TRANSPORT - STOCHASTIC VERSUS KINETIC APPROACH

Authors
BALESCU R
Citation
R. Balescu, ANOMALOUS TRANSPORT - STOCHASTIC VERSUS KINETIC APPROACH, Plasma physics and controlled fusion, 36(12B), 1994, pp. 153-162
Citations number
6
Categorie Soggetti
Phsycs, Fluid & Plasmas
Journal title
Plasma physics and controlled fusion → ACNP
ISSN journal
07413335
Volume
36
Issue
12B
Year of publication
1994
Supplement
S
Pages
153 - 162
Database
ISI
SICI code
0741-3335(1994)36:12B<153:AT-SVK>2.0.ZU;2-9
Abstract
The anomalous diffusion coefficient in a turbulent plasma with destroy ed magnetic surfaces can be defined in two independent ways. The first one requires the evaluation of the mean square displacement of a part icle described by a stochastic Langevin equation; The second one start s from the correlation between the magnetic fluctuation and the fluctu ating distribution function, to be obtained from a kinetic equation. T he two approaches are critically compared.