Relaxation processes for a three-wave interaction model

AUTOR(ES)

Meiss, James D.

RESUMO

A system of waves coupled by three-wave, or triad, interactions is considered. A model is constructed to describe the response of a single test wave to interaction with a “heat bath” of “ambient waves.” An exact solution for the relaxation of the test wave amplitude is obtained. Regimes of validity are shown for the use of a Langevin equation based on a two-time scale perturbation theory.

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