We give an overview of moduli stabilization in compactifications of string theory. We
summarize current methods for construction and analysis of vacua with stabilized moduli …

Recently, many works have tried to realize cosmological accelerated expansion in string
theory models in the asymptotic regions of field space, with a typical scalar potential V (φ) …

A bstract We study bubble of nothing decays and their reverse processes, the creation of
vacua through 'bubbles of something', in models of the Universe based on string theory …

Dynamical dark energy has gained renewed interest due to recent theoretical and
observational developments. In the present paper, we focus on a string-motivated dark …

False-vacuum eternal inflation can be described as a random walk on the network of vacua
of the string landscape. In this paper we show that the problem can be mapped naturally to a …

Making cosmological predictions in a multiverse is a fundamental theoretical challenge.
Assuming that (quasi-) de Sitter vacua are quantum mechanically described by a finite …

In this thesis we present the cosmological applications of some proposals from Quantum
Gravity. Namely, we will explore classical and quantum cosmological implications of the …

Dynamical dark energy has gained renewed interest due to recent theoretical and
observational developments. In the present paper, we focus on a string-motivated dark …

Resúmen En esta tesis presentamos aplicaciones cosmológicas de algunas propuestas en
gravedad cuántica. A saber, exploraremos implicaciones clásicas y cuánticas del Principio …