Energy transfer by quadratic, non-resonant wave interactions in a collisionless plasma

Abstract

The first order non-linear coupled equations describing the time evolution of a three-body model of the weak, electrostatic plasma turbulence, are considered to study energy transfer processes within the framework of the coherent wave interactions theory. Under conditions far from resonance, non-linear wave-particle effects may lead, in a collisionless Vlasov plasma, to the generation of a beat wave and introduce the coupling between the primary eigenmodes. The model equations for the one-dimensional energy transfer are derived.