A streamlined proof that in 3D Vlasov-Poisson, small perturbations near the Poisson equilibrium produce a decaying electric field and convergence to a free-streaming state, reproducing a theorem of Ionescu, Pausader, Wang and Widmayer.
Decay estimates for the $3D$ relativistic and non-relativistic Vlasov-Poisson systems
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abstract
We study the small data global regularity problem of the $3D$ Vlasov-Poisson system for both the relativistic case and the non-relativistic case. The main goal of this paper is twofold. (i) Based on a Fourier method, which works systematically for both the relativistic case and the non-relativistic case, we give a short proof for the global regularity and the sharp decay estimate for the $3D$ Vlasov-Poisson system. Moreover, we show that the nonlinear solution scatters to a linear solution in both cases. The result of sharp decay estimates for the non-relativistic case is not new, see Hwang-Rendall-Vel\'azquez and Smulevici. (ii) The Fourier method presented in this paper serves as a good comparison for the study of more complicated $3D$ relativistic Vlasov-Nordstr\"om system and $3D$ relativistic Vlasov-Maxwell system.
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A new proof of nonlinear Landau damping for the 3D Vlasov-Poisson system near Poisson equilibrium
A streamlined proof that in 3D Vlasov-Poisson, small perturbations near the Poisson equilibrium produce a decaying electric field and convergence to a free-streaming state, reproducing a theorem of Ionescu, Pausader, Wang and Widmayer.