Comment on "Non-reciprocal topological solitons in active metamaterials"
Pattern Formation and Solitons
2024-04-09 v1 Materials Science
Soft Condensed Matter
Optics
Abstract
In the recent work "Non-reciprocal topological solitons in active metamaterials" (see arXiv:2312.03544v1), for an analytical understanding of the system under consideration, the authors derive an ordinary differential equation for the sine-Gordon (anti)soliton velocity, with the perturbation theory in the adiabatic approximation, via the inverse scattering transform formalism, see Eq. (3) in their work. Here we note that the latter equation for the (anti)soliton velocity also follows from an energy balance approach.
Keywords
Cite
@article{arxiv.2404.04275,
title = {Comment on "Non-reciprocal topological solitons in active metamaterials"},
author = {Duilio De Santis and Bernardo Spagnolo and Angelo Carollo and Davide Valenti and Claudio Guarcello},
journal= {arXiv preprint arXiv:2404.04275},
year = {2024}
}
Comments
1 page; comment on arXiv:2312.03544