Estudo de Espalhamento em Sistemas Aharonov-Bohm em Espaço Cônico

• Autor(a) principal: Salem, Vinícius
• Data de Publicação: 2017
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UEPG
• Texto Completo: http://tede2.uepg.br/jspui/handle/prefix/869
• topic: Efeito Aharonov-Bohm; potenciais eletromagnéticos; espalhamento; topologia cônica; estados ligados; Aharonov-Bohm efect; electromagnetic potentials; cattering; conical espace; bound states; CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA

In the present work, it is explained in a concise way the Aharonov-Bohm (AB) Efect in the magnetic case. Possible interpretations envolving the phenomena are discussed too, through a carefull review about the theme in literature, in purpose to sumarize the diferent interpretations concerning the possible physical reality of electromagnetic potentials in physics, in special the case of the vector potential, since this work focuses in the magnetic AB eect. Also, the construction and solution of Dirac equation is studied in details for the non-relativistic limit case of an electron possessing anomalous magnetic moment (i.e., g 6=2) in a conical space. For this purpose, the self-adjoint extensions method as developed by Bulla and Gesztesy is used in order to obtain expressions for bound states energies and scattering. The self-adjoint extension parameter obtained in the study of bound states and scattering showed very plausible physical results, consonant with the literature in general, as exposed in detail in chapter four. Finally, it is discussed the role of anomaly of the electron magnetic moment in providing bound states energies, a theme rarely discussed in literature since now.