Resonance structures in kink-antikink collisions in a deformed sine-Gordon model

Dorey, Patrick; Gorina, Anastasia; Perapechka, Ilya; Romańczukiewicz, Tomasz; Shnir, Yakov

doi:10.1007/jhep09(2021)145

Resonance structures in kink-antikink collisions in a deformed sine-Gordon model

Dorey, Patrick; Gorina, Anastasia; Perapechka, Ilya; Romańczukiewicz, Tomasz; Shnir, Yakov

Authors

Professor Patrick Dorey p.e.dorey@durham.ac.uk
Professor

Anastasia Gorina

Ilya Perapechka

Tomasz Romańczukiewicz

Yakov Shnir

Abstract

We study kink-antikink collisions in a model which interpolates smoothly between the completely integrable sine-Gordon theory, the ϕ4 model, and a ϕ6-like model with three degenerate vacua. We find a rich variety of behaviours, including integrability breaking, resonance windows with increasingly irregular patterns, and new types of windows near the ϕ6-like regime. False vacua, extra kink modes and kink fragmentation play important roles in the explanations of these phenomena. Our numerical studies are backed up by detailed analytical considerations.

Citation

Dorey, P., Gorina, A., Perapechka, I., Romańczukiewicz, T., & Shnir, Y. (2021). Resonance structures in kink-antikink collisions in a deformed sine-Gordon model. Journal of High Energy Physics, 2021(9), Article 145. https://doi.org/10.1007/jhep09%282021%29145

Journal Article Type	Article
Acceptance Date	Aug 30, 2021
Online Publication Date	Sep 22, 2021
Publication Date	2021
Deposit Date	Oct 19, 2021
Publicly Available Date	Oct 19, 2021
Journal	Journal of High Energy Physics
Print ISSN	1126-6708
Publisher	Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed	Peer Reviewed
Volume	2021
Issue	9
Article Number	145
DOI	https://doi.org/10.1007/jhep09%282021%29145
Related Public URLs	https://arxiv.org/abs/2106.09560

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http://creativecommons.org/licenses/by/4.0/

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Open Access . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.