Interação Geométrica de Defeitos Topológicos em Sistemas Bidimensionais

• Ano de defesa: 2006
• Autor(a) principal: Vieira, Marcelo da Silva
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal da Paraí­ba; BR; Física; Programa de Pós-Graduação em Física; UFPB
• Palavras-chave em Português: Defeitos Topológicos; Interaçãao Geométrica; Topological Defects; Geometric Interaction; CIENCIAS EXATAS E DA TERRA::FISICA
• Link de acesso: https://repositorio.ufpb.br/jspui/handle/tede/5710

The principal aim this work is the thermodynamic caracterization of bidimensional systems in non-Euclidian geometries as XY models, Helium superfluids films and liquid crystal films. These systrems present local order in two dimensions, then topological defects arise naturally. The significative contribution for the free energy in this systems it must at the topological defects, then a good caracterization these systems is given by understanding the physics of topological defects. This way, we develop the content of this dissertation with the purpose of to understanding the behave of the systems described here in non-euclidian geometries, as well contributions of these geometries for the phase transitions ocurred in these systems, as we do in case of sphere, cone, hyperboloid.