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On Asymptotic Stability of Solitary Waves in a Nonlinear Schrödinger Equation

V. Buslaev·A. Komech·E. Kopylova·D. Stuart
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Abstract

The long-time asymptotics is analyzed for finite energy solutions of the 1D Schrödinger equation coupled to a nonlinear oscillator. The coupled system is invariant with respect to the phase rotation group U(1). For initial states close to a solitary wave, the solution converges to a sum of another solitary wave and dispersive wave which is a solution to the free Schrödinger equation. The proofs use the strategy of Buslaev-Perelman: the linerization of the dynamics on the solitary manifold, the symplectic orthogonal projection and method of majorants.

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V. Buslaev, A. Komech, E. Kopylova, D. Stuart. 2007-02-04. On Asymptotic Stability of Solitary Waves in a Nonlinear Schrödinger Equation. https://arxiv.org/abs/math-ph/0702013

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