Modified scattering for nonlinear Schrödinger equations with long-range potentials

Kawamoto, Masaki; Mizutani, Haruya

doi:10.1090/tran/9369

Modified scattering for nonlinear Schrödinger equations with long-range potentials
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by Masaki Kawamoto and Haruya Mizutani;

Trans. Amer. Math. Soc. 378 (2025), 3625-3652

DOI: https://doi.org/10.1090/tran/9369

Published electronically: February 18, 2025

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Abstract:

We study the final state problem for the nonlinear Schrödinger equation with a critical long-range nonlinearity and a long-range linear potential. Given a prescribed asymptotic profile which is different from the free evolution, we construct a unique global solution scattering to the profile. In particular, the existence of the modified wave operators is obtained for sufficiently localized small scattering data. The class of potential includes a repulsive long-range potential with a short-range perturbation, especially the positive Coulomb potential in two and three space dimensions. The asymptotic profile is constructed by combining Yafaev’s type linear modifier associated with the long-range part of the potential and the nonlinear modifier introduced by Ozawa. Finally, we also show that one can replace Yafaev’s type modifier by Dollard’s type modifier under a slightly stronger decay assumption on the long-range potential. This is the first positive result on the modified scattering for the nonlinear Schrödinger equation in the case when both of the nonlinear term and the linear potential are of long-range type.

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Modified scattering for nonlinear Schrödinger equations with long-range potentials
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Abstract: