Spectral walls in multifield kink dynamics

C Adam, K Oles, T Romanczukiewicz… - Journal of High Energy …, 2021 - Springer
A bstract We show that spectral walls are common phenomena in the dynamics of kinks in
(1+ 1) dimensions. They occur in models based on two or more scalar fields with a …

Geometrically constrained kink-like configurations engendering long-range, double-exponential, half-compact and compact behavior

D Bazeia, MA Marques, R Menezes - The European Physical Journal Plus, 2023 - Springer
We describe a procedure that contributes to modify the asymptotic behavior of kinks in a
model described by two real scalar fields. The investigation takes advantage of a first-order …

Self-dual compact gauged baby skyrmions in a continuous medium

CAI Florián, R Casana, AC Santos - Annals of Physics, 2024 - Elsevier
We investigate the existence of self-dual configurations in the restricted gauged baby
Skyrme model enlarged with a Z 2–symmetry, which introduces a real scalar field. For such …

Manipulating the internal structure of Bloch walls

D Bazeia, MA Marques, M Paganelly - The European Physical Journal …, 2022 - Springer
In this work, we describe a procedure to manipulate the internal structure of localized
configurations of the Bloch wall type. We consider a three-field model and develop a first …

Mechanism to induce geometric constriction on kinks and domain walls

AJB Sebastian, D Bazeia, MA Marques - Europhysics Letters, 2023 - iopscience.iop.org
We investigate scalar field theories in the multifield scenario, focusing mainly on the
possibility to smoothly build internal structure and asymmetry for kinks and domain walls …

Kink scattering in the presence of geometric constrictions

JGF Campos, FC Simas, D Bazeia - Journal of High Energy Physics, 2023 - Springer
A bstract We investigate kink-antikink collisions in a model characterized by two scalar fields
in the presence of geometric constrictions. The model includes an auxiliary function that …

Restricted baby Skyrme-Maxwell theory in a magnetic medium: BPS configurations and some properties

J Andrade, R Casana, E da Hora, AC Santos - Physical Review D, 2024 - APS
We study the existence of Bogomol'nyi-Prasad-Sommerfield (BPS) configurations in a
restricted baby Skyrme-Maxwell enlarged via the inclusion of a nontrivial magnetic …

[HTML][HTML] Spatially localized scalar structures on hyperscaling violating geometries

I Andrade, MA Marques, R Menezes, DC Moreira - Nuclear Physics B, 2024 - Elsevier
In this work, we investigate probe scalar field models preserving covariance on fixed, static
background geometries that present hyperscaling violation properties. We develop a first …

Geometrically constrained sine-Gordon field: BPS solitons and their collisions

E da Hora, L Pereira, C Santos, FC Simas - arXiv preprint arXiv …, 2024 - arxiv.org
We consider an enlarged $(1+ 1) $-dimensional model with two real scalar fields, $\phi $
and $\chi $ whose scalar potential $ V (\phi,\chi) $ has a standard $\chi^ 4$ sector and a …

Geometrically constrained localized configurations: First-order framework and analytical solutions

D Bazeia, MA Feitosa, R Menezes, GS Santiago - Annals of Physics, 2024 - Elsevier
This work deals with the presence of topological structures in models of two real scalar fields
in the two-dimensional spacetime. The subject concerns the presence of a geometric …