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 …

In the context of the late time cosmic acceleration phenomenon, many geometrically
modified theories of gravity have been proposed in recent times. In this paper, we have …

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

I make a review on the aplications of the Bohm-de Broglie interpretation of quantum
mechanics to quantum cosmology. In the framework of minisuperspaces models, I show how …

A free scalar field minimally coupled to gravity model is quantized and the Wheeler-DeWitt
equation in minisuperspace is solved analytically, exhibiting positive and negative …

This chapter focuses on canonical quantum gravity and discusses how many conceptual
problems, such as the measurement problem and the problem of time, can be overcome by …

In this paper we examine some proposals to disprove the hypothesis that the interaction
between mind and matter causes the collapse of the wave function, showing that such …

Semi-classical theories are approximations to quantum theory that treat some degrees of
freedom classically and others quantum mechanically. In the usual approach, the quantum …

We study the Wheeler-DeWitt quantum cosmology of a spatially flat Friedmann cosmological
model with a free massless scalar field. We compare the consistent histories approach with …

The quantum cosmology of the flat Friedmann-Lemaître-Robertson-Walker universe, filled
with a scalar field, is considered in the de Broglie–Bohm (dBB) interpretation framework. A …