New aspects on nonlinear Landau damping

Recently a new description of nonlinear Landau damping, applicable to wave propagation in a weakly collisional as well as collisionless plasma, has been presented. The results in that work are extended in order to give a more detailed picture of the long term evolution. It is concluded that collisions cannot be negligible more than 10-20 bounce times, even for a very low collision frequency.