We present a new description of nonlinear Landau damping, applicable to wave propagation in a weakly collisional as well as a collisionless plasma. We derive a set of equations with a simple energy conservation law which is useful for understanding the evolution of the system. A numerical investigation shows significant differences as compared to previous studies. The reasons for the deviations from the earlier results are explained.
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Gert Brodin (1997) studied this question.
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