Non-topological solitons and quasi-solitons
Abstract
Solitons in relativistic field theories are not necessarily topologically charged. In particular, non-topological solitons -- known as Q-balls -- arise naturally in nonlinear field theories endowed with attractive interactions and internal symmetries. Even without stabilizing internal symmetries, quasi-solitons known as oscillons, which are long-lived, can also exist. Both Q-balls and oscillons have significant applications in cosmology and particle physics. This review is an updated account of the intriguing properties and dynamics of these non-topological solitons and quasi-solitons, as well as their important roles in early-universe scenarios and particle physics models.
Keywords
Cite
@article{arxiv.2411.16604,
title = {Non-topological solitons and quasi-solitons},
author = {Shuang-Yong Zhou},
journal= {arXiv preprint arXiv:2411.16604},
year = {2025}
}
Comments
53 pages, invited review for Reports on Progress in Physics; comments welcome