https://doi.org/10.1140/epjc/s10052-024-13052-6
Regular Article - Theoretical Physics
Scalar fields, localized structures and the Starobinsky model
1
Departamento de Física, Universidade Federal da Paraíba, 58051-970, João Pessoa, PB, Brazil
2
Instituto Federal de Ciência e Tecnologia da Bahia, 47808-006, Barreiras, BA, Brazil
Received:
12
April
2024
Accepted:
24
June
2024
Published online:
5
July
2024
This work deals with the presence of localized static structures in the real line, described by relativistic real scalar fields in two spacetime dimensions. We consider models featuring both standard and modified kinematics, where we employ two intriguing potentials supporting defect solutions. The first potential can transform kink into compacton in the standard framework, while the second one is based on the inflationary Starobinsky model. Interesting possibilities unseen in previous investigations are described, in particular, for the case related to the Starobinsky potential. The addressed potentials are inserted into a broader framework, and so the extended models are described by a wider set of solutions. This investigation also reveals the presence of the twinlike behaviour for a specific compact configuration, which solves two distinct models.
© The Author(s) 2024
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