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Solitons in one-dimensional nonlinear Schrödinger lattices with a local inhomogeneity

Palmero, F; Carretero-Gonzales, R; Cuevas, J; Kevrekidis, P G; Krolikowski, Wieslaw


In this paper we analyze the existence, stability, dynamical formation, and mobility properties of localized solutions in a one-dimensional system described by the discrete nonlinear Schrödinger equation with a linear point defect. We consider both attractive and repulsive defects in a focusing lattice. Among our main findings are (a) the destabilization of the on-site mode centered at the defect in the repulsive case, (b) the disappearance of localized modes in the vicinity of the defect due...[Show more]

CollectionsANU Research Publications
Date published: 2008-03-28
Type: Journal article
Source: Physical Review E-Statistical, Nonlinear and Soft Matter Physics
DOI: 10.1103/PhysRevE.77.036614


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