Spectral stability of periodic NLS and CGL solutions

Thomas Ivey; Stephane Lafortune

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arXiv · 0705.1164

Spectral stability of periodic NLS and CGL solutions

Thomas Ivey·Stephane Lafortune

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Abstract

We consider periodic traveling wave solutions to the focusing nonlinear Schrodinger equation (NLS) that have been shown to persist when the NLS is perturbed to the complex Ginzburg-Landau equation (CGL). In particular, we show that these periodic traveling waves are spectrally stable solutions of NLS with respect to periodic perturbations. Furthermore, we use an argument based on the Fredholm alternative to find an instability criterion for the persisting solutions to CGL.

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Thomas Ivey, Stephane Lafortune. 2007-05-08. Spectral stability of periodic NLS and CGL solutions. https://arxiv.org/abs/0705.1164

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