Coherent structures in a turbulent environment
arXiv:physics/0102040 · doi:10.1103/PhysRevE.65.026406
Abstract
A systematic method is proposed for the determination of the statistical properties of a field consisting of a coherent structure interacting with turbulent linear waves. The explicit expression of the generating functional of the correlations is obtained, performing the functional integration on a neighbourhood in the function space around the soliton. The results show that the non-gaussian fluctuations observed in the tokamak plasma edge can be explained by the intermittent formation of nonlinear coherent structures.
Revtex 21 pages includes 6 EPS figures