Efeitos quânticos devido a quebra da simetria de Lorentz produzida por campos vetoriais de fundo e campos elétricos

• Ano de defesa: 2022
• Autor(a) principal: Oliveira, Adriano dos Santos
• 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: Física; Simetria de Lorentz - Violação; Efeitos quânticos; Campos vetoriais fixos; Campos elétricos; Physical; Lorentz symmetry - Violation; Quantum effects; Fixed vector fields; Electric fields; CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA
• Link de acesso: https://repositorio.ufpb.br/jspui/handle/123456789/26375

The main objective of this thesis is to study relativistic and non-relativistic quantum effects on the dynamics of a spin-half particle, neutral or electrically charged, interacting with electric fields in the presence of fixed background fields that give a preferential direction in space-time . Thus violating the Lorentz symmetry. From the insertion of a non-minimum coupling in the Dirac equation, it is possible to describe the interaction of the spin-half particle with electric fields in the Lorentz symmetry violation background and with that, obtain the energy spectrum in various systems. Characterized by analogues of relativistic Landau quantization, Aharonov-Bohm effect, inverse attractive square potential, harmonic oscillator and coulomb potential, where these analogues are studied for a neutral particle. Finally, we study the dynamics of an electron in a Lorentz symmetry violation scenario.