Exotic Bose-Einstein condensates: binary mixtures and dipolar gases

Autor(es)

Luis Ever Young Silva

• Tipo de documento: Tese de Doutorado
• Imprenta: São Paulo. 2014-06-11.
• Instituição: Universidade Estadual Paulista (Unesp). Instituto de Física Teórica (IFT). São Paulo
• Data de defesa: 2013-02-26
• Orientador: Sadhan Kumar Adhikari

Resumo

We described the basic ideas of Bose-Einstein condensation (BEC), and then we focused our study on extensions to more exotic condensates including mixtures of two components, where interesting characteristics are found due to the interspecies interaction, and magnetic dipolar gases, which with their ansiotropic long-range dipolar interaction have opened up new avenues of research into cold atoms, in a quest for novel and fascinating features. In this thesis, we present the mean-field model for the binary BEC interacting two-componente mixtures of dipolar and nondipolar BECs, the formation and dynamics of bright solitons, the strong coupling domain for dipolar BECS, and the features of an untrapped bound dipolar droplet in a trapped nondipolar condensate. Our numerical results are presented in density plots, stability, phase plots, structure formartion in densities, breathing oscillation, and more. However, these solutions, whenever possible, are associated with quantities widely handled in experimental techniques, theough a specific types of atoms, number of particles, values of parameters of interaction or the anisotropy of trap, and others quantities related to experimental observables (AU)

• Processo FAPESP: 10/09539-1 - Redução dimensional das equações de campo médio para superfluidos atômicos
• Beneficiário: Luis Ever Young Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado