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

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

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
• Electronic ISSN: 1029-8479
• 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
• Public URL: https://durham-repository.worktribe.com/output/1226717
• Related Public URLs: https://arxiv.org/abs/2106.09560