Solitons in anharmonic chains with ultra-long-range interatomic interactions
patt-sol
2009-10-31 v1 Pattern Formation and Solitons
Abstract
We study the influence of long-range interatomic interactions on the properties of supersonic pulse solitons in anharmonic chains. We show that in the case of ultra-long-range (e.g., screened Coulomb) interactions three different types of pulse solitons coexist in a certain velocity interval: one type is unstable but the two others are stable. The high-energy stable soliton is broad and can be described in the quasicontinuum approximation. But the low-energy stable soliton consists of two components, short-range and long-range ones, and can be considered as a bound state of these components.
Keywords
Cite
@article{arxiv.patt-sol/9910005,
title = {Solitons in anharmonic chains with ultra-long-range interatomic interactions},
author = {Serge F. Mingaleev and Yuri B. Gaididei and Franz G. Mertens},
journal= {arXiv preprint arXiv:patt-sol/9910005},
year = {2009}
}
Comments
4 pages (LaTeX), 5 figures (Postscript); submitted to Phys. Rev. E