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In the last few years evidence has been growing that the structure of the Galactic Bulge is very complex. Several independent studies suggest the presence of more than one stellar populations in the bulge, with different origins and a relative fraction changing across the bulge area. To character...

En esta tesis doctoral se construyen y analizan soluciones, tanto analíticas como numéricas, de solitones gravitantes y solitones cargados en el modelo de Skyrme para los grupos de simetrı́a internos SU(2) y SU(3). Cuando el modelo de Skyrme es acoplado a la teoría de Maxwell, veremos que es posi...

In this doctoral thesis, are constructed and analyzed both analytical and numerical solutions of gravitating solitons and gauged solitons in the Skyrme model for the internal symmetry groups SU(2) and SU(3). When the Skyrme model is coupled to Maxwell’s theory, we will see that it is possible t...

In spite of the efforts focused on understanding the formation of high mass stars, we do not have a clear understanding of which are the processes involved. To understand it, we need to characterize objects in very early stages of evolution and therefore infer the initial conditions of these proc...

In this work, we study systems with coupling between fermionic states and Majorana bound states (MBS), which are seen as a fractionalization of the first on the Kitaev model. The MBSs have interesting properties such as satisfying non-Abelian statistics, being of interest in quantum computation i...

En este trabajo se estudian sistemas con acoplamiento entre estados fermiónicos y estados ligados de Majorana (ELM), los cuales son vistos como fraccionalización de los primeros en el modelo de Kitaev. Los ELM poseen interesantes propiedades, entre las que destaca el satisfacer estadística no Abe...

This thesis describes three experiments in the topics of magnetism and superconductivity. The first experiment demonstrates the ability to have magnetic control of the triplet component amplitude in a Nb/Co/Cu/Co/CoO superconducting spin valve. The experiment is done by measuring the superconduct...

A medida que el agua de mar -eléctricamente conductora- se mueve a través del campo magnético de la Tierra, los iones de sodio y cloro disueltos en el océano son desviados debido a su interacción con este campo y su movimiento induce corrientes eléctricas en el océano. Estas corrientes generan ca...

As the electrically-conducting seawater flows across the Earth’s magnetic field, the moving salt ions are deflected by their interaction with the geomagnetic field, thereby inducing electric currents in the ocean. These currents generate secondary magnetic fields, in the range of the nanotesla (n...

The discovery of brown dwarfs of the new Y spectral type by the NASA Wide-field Infrared Survey Explorer (WISE) has allowed astronomers to study the physics of the coolest brown dwarfs and determine their prevalence in the Milky Way. This thesis exploits the high resolution and wide field–of–view...