Title
Self-dual solitons in a Born-Infeld baby Skyrme model
Date Issued
15 September 2021
Access level
open access
Resource Type
journal article
Author(s)
Santos A.C.
Universidade Federal Do Maranhão
Publisher(s)
American Physical Society
Abstract
We show the existence of self-dual (topological) solitons in a gauged version of the baby Skyrme model in which the Born-Infeld term governs the gauge field dynamics. The successful implementation of the Bogomol'nyi-Prasad-Sommerfield formalism provides a lower bound for the energy and the respective self-dual equations whose solutions are the solitons saturating such a limit. The energy lower bound (Bogomol'nyi bound) is proportional to the topological charge of the Skyrme field and therefore quantized. In contrast, the total magnetic flux is a nonquantized quantity. Furthermore, the model supports three types of self-dual solitons profiles: the first describes compacton solitons, the second follows a Gaussian decay law, and the third portrays a power-law decay. Finally, we perform numerical solutions of the self-dual equations and depict the soliton profiles for different values of the parameters controlling the nonlinearity of the model.
Volume
104
Issue
6
Language
English
OCDE Knowledge area
Física atómica, molecular y química
Scopus EID
2-s2.0-85115216630
Source
Physical Review D
ISSN of the container
24700010
Sponsor(s)
This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001. We also thank the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), and the Fundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão (FAPEMA) (Brazilian Government agencies). In particular, A. C. S. thanks the full support from CAPES. R. C. acknowledges the support from the grants CNPq/306724/2019-7, CNPq/423862/2018-9, FAPEMA/Universal-01131/17, and FAPEMA/Universal-00812/19.
Sources of information:
Directorio de Producción Científica
Scopus