Efeitos de torção e violação da simetria de Lorentz sobre um campo escalar sujeito a potenciais centrais

• Ano de defesa: 2018
• Autor(a) principal: Vitória, Ricardo Luís Lima
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal da Paraíba; Brasil; Física; Programa de Pós-Graduação em Física; UFPB
• Palavras-chave em Português: Oscilador de Klein-Gordon; Deslocações tipo-espaço; Violação da simetria de Lorentz; Klein-Gordon oscillator; Space-like dislocations; Violation of Lorentz symmetry; CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA
• Link de acesso: https://repositorio.ufpb.br/jspui/handle/123456789/13566

In this work, we investigate the influence of central potentials on the scalar field in three different scenarios: the Minkowski spacetime, spacetime with a space-like dislocation and a spacetime with an anisotropy caused by the violation of the Lorentz symmetry. In the Minkowski spacetime, we analyse the scalar field subject to the Klein-Gordon oscillator plus the linear and Coulomb-type potentials. In the spacetime with a screw dislocation, we investigate the effects of torsion on the scalar field. We discuss the analogous effect to the Aharonov-Bohm effect for bound states. In addition, we analyse rotating effects on the scalar field in spacetime with a screw dislocation and in the spacetime with a spiral dislocation. Next, we deal with the interface between a theory that goes beyond the Standard Model and quantum mechanics. We consider a background of the violation of Lorentz symmetry determined by the tensor field, and thus, analyse effects on the scalar field.