Coherent structures in a turbulent environment.
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 neighborhood in the function space around the soliton. The results show that the non-Gaussian fluctuations observed in the plasma edge can be explained by the intermittent formation of nonlinear coherent structures.
Spineanu
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Association Euratom--CEA sur la Fusion, CEA--Cadarache, F-13108 Saint-Paul-lez-Durance, France.
Vlad
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