Estudo de soluções de buraco negro e buraco de minhoca na teoria de Einstein-Maxwell na presença de campo escalar

• Ano de defesa: 2023
• Autor(a) principal: Gomes, Tales Augusto Oliveira
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Física; Centro de Ciências Exatas; UFES; Programa de Pós-Graduação em Física
• Palavras-chave em Português: Buracos Negros; Buracos de Minhoca; Referencial de Einstein; Referencial de Jordan; Teorias Escalares Tensoriais; Campo Escalar; subject.br-rjbn; Física
• Link de acesso: http://repositorio.ufes.br/handle/10/17193

The existence of charged black hole and wormhole solutions in general tensor-scalar theories has been extensively explored in the literature, with such solutions generally only possible for a negative value of the scalar field’s kinetic term. In this work, we classify and analyze charged black hole and wormhole solutions in the Einstein-Maxwell system in the presence of a minimally coupled, massless scalar field. These solutions describe wormholes, naked singularities, and a restricted class of black holes that can have up to two event horizons with infinite surface area and a time-like singularity. These solutions are found in the Einstein frame and can be mapped to the Jordan frame, where the scalar field exhibits a non-minimal coupling to the geometry through a conformal transformation. The classified solutions in this work possess certain specificities compared to the solutions found in the Jordan frame, as discussed in the text.