Given the proliferation of bouncing models in recent years, we gather and critically assess
these proposals in a comprehensive review. The PLANCK data shows an unmistakably red …

We review the general features of nonsingular universes (ie those that go from an era of
accelerated collapse to an expanding era without displaying a singularity) as well as cyclic …

A large number of models have been analyzed in loop quantum cosmology, using mainly
minisuperspace constructions and perturbations. At the same time, general physics …

Bohmian mechanics provides an explanation of quantum phenomena in terms of point-like
particles guided by wave functions. This review focuses on the use of nonrelativistic …

Abstract Perfect fluid Friedmann-Robertson-Walker quantum cosmological models for an
arbitrary barotropic equation of state p= αρ are constructed using Schutz's variational …

We review the main results that have been obtained in quantum cosmology from the
perspective of the de Broglie–Bohm quantum theory. As it is a dynamical theory of assumed …

We construct a simple nonsingular cosmological model in which the currently observed
expansion phase was preceded by a contraction. This is achieved, in the framework of pure …

Following recent claims relative to the question of large anisotropy production in regular
bouncing scenarios, we study the evolution of such anisotropies in a model where an …

We propose a new cosmological paradigm in which our observed expanding phase is
originated from an initially large contracting Universe that subsequently experienced a …

We study some consequences of noncommutativity to homogeneous cosmologies by
introducing a deformation of the commutation relation between the minisuperspace …