BPS and semi-BPS kink families in two-component scalar field theories with fourth-degree polynomial potentials

Fuente: arXiv
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Autores principales: Alonso-Izquierdo, A., León, M. A. González, González-Parra, A., Martín-Vaquero, J.
Formato: Preprint
Publicado: 2026
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author Alonso-Izquierdo, A.
León, M. A. González
González-Parra, A.
Martín-Vaquero, J.
author_facet Alonso-Izquierdo, A.
León, M. A. González
González-Parra, A.
Martín-Vaquero, J.
contents We perform a systematic study of kink solutions in two-component scalar field theories in $(1+1)$ dimensions with interaction terms of at most quartic order. Our approach is based on the Bogomolny formalism, constructing scalar potentials from suitable superpotentials and analyzing the corresponding first-order equations. While cubic polynomial superpotentials naturally generate quartic interactions, we show that more general functional forms also lead to admissible models within the same class. In this way, we identify new models supporting continuous families of kinks with nontrivial internal structure, such that they can be interpreted as composite configurations formed by multiple localized energy lumps.
format Preprint
id arxiv_https___arxiv_org_abs_2603_06086
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle BPS and semi-BPS kink families in two-component scalar field theories with fourth-degree polynomial potentials
Alonso-Izquierdo, A.
León, M. A. González
González-Parra, A.
Martín-Vaquero, J.
High Energy Physics - Theory
Mathematical Physics
We perform a systematic study of kink solutions in two-component scalar field theories in $(1+1)$ dimensions with interaction terms of at most quartic order. Our approach is based on the Bogomolny formalism, constructing scalar potentials from suitable superpotentials and analyzing the corresponding first-order equations. While cubic polynomial superpotentials naturally generate quartic interactions, we show that more general functional forms also lead to admissible models within the same class. In this way, we identify new models supporting continuous families of kinks with nontrivial internal structure, such that they can be interpreted as composite configurations formed by multiple localized energy lumps.
title BPS and semi-BPS kink families in two-component scalar field theories with fourth-degree polynomial potentials
topic High Energy Physics - Theory
Mathematical Physics
url https://arxiv.org/abs/2603.06086