Estudo da cosmologia inflacionária em um cenário violando a invariância de Lorentz.

Abstract

In this dissertation, we consider a cosmological setup with inflaton field in the presence of background field dependent redshift time-like to address the inflationary regime and other phases of the Universe. We also show that the regime of dark energy at large distances (low redshifts) is essentially dominated by the presence of the Lorentz-violating background.