Stationary Solitons in discrete NLS with non-nearest neighbour interactions
Abstract
The aim of this paper is to provide a construction of stationary discrete solitons in an extended one-dimensional Discrete NLS model with non-nearest neighbour interactions. These models, models of the type with long-range interactions were studied in various other contexts. In particular, it was shown that, if the interaction strength decays sufficiently slowly as a function of distance, it gives rise to bistability of solitons, which may find applications in their controllable switching. Dynamical lattices with long-range interactions also serve as models for energy and charge transport in biological molecules. Using a dynamical systems method we are able to construct, with great accuracy, stationary discrete solitons for our model, for a large region of the parameter space.
Cite
@article{arxiv.2407.15088,
title = {Stationary Solitons in discrete NLS with non-nearest neighbour interactions},
author = {Vassilis M. Rothos and Stavros Anastassiou and Katerina G. Hadjifotinou},
journal= {arXiv preprint arXiv:2407.15088},
year = {2026}
}