Descrição
The phenomenon known as Spontaneous Scalarization arises once a certain threshold in curvature is exceeded. It is triggered by an instability on the scalar field system that can lead to a stable scalarized solution. In this work, we show that an extended, self-gravitating system, which is static, cylindrically symmetric, and possesses electromagnetic fields, can undergo spontaneous scalarization. We demonstrate that a real massive scalar field condenses on the Melvin Magnetic Universe when introducing a non-minimal coupling between the scalar field and (a) the magnetic field, and (b) high-order curvature terms, respectively. We found that in both cases the solution exists on a finite interval of the coupling constant and solutions with a number of nodes, k, in the scalar field, exist. For case (a) we observe that the intervals of existence are mutually exclusive for different nodes. For a more detailed explanation check and references therein. (1)
Referências
1 BRIHAYE, Y.; CAPOBIANCO, R.; HARTMANN, B. Spontaneous scalarization of self-gravitating magnetic fields. Physical Review D, v. 103, n. 12, p. 124020-1-124020-9, 2021.
| Certifico que os nomes citados como autor e coautor estão cientes de suas nomeações. | Sim |
|---|---|
| Palavras-chave | Gravity. Spontaneous scalarization. Scalar field. |
| Orientador e coorientador | Betti Hartmann |
| Subárea 1 | Relatividade e Gravitação |
| Subárea 2 (opcional) | Astrofísica e Astronomia |
| Agência de Fomento | CAPES |
| Número de Processo | 88887.371717/2019-00 |
| Modalidade | DOUTORADO |
| Concessão de Direitos Autorais | Sim |
