Stability and decay of composite kinks/Q-balls solutions in a deformed O(2N+1) linear sigma model

A. Alonso-Izquierdo, D. Canillas Martínez, C. Garzón Sánchez, M.A. González León and A. Wereszczynski

Chaos, Solitons & Fractals, 2024, vol. 188, issue C

Abstract: The defect-type solutions of a deformed O(2N+1) linear sigma model with a real and N complex fields in (1+1)-dimensional Minkowski spacetime are studied. All the solutions are analytically found for the N=2 case. Two types of solitons have been determined: (a) Simple solutions formed by a topological kink with or without the presence of a Q-ball. (b) Composite solutions. They are constituted by some one-parameter families of solutions which can be understood as a non-linear combination of simple solutions. The properties of all of those solutions and the analysis of their linear stability, as well as decay channels, are discussed.

Keywords: Topological defects; Q-balls; Stability; Decay channels (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:188:y:2024:i:c:s0960077924010415

DOI: 10.1016/j.chaos.2024.115489

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