Recent cosmological observations have posed a challenge for traditional theories of gravity:
what is the force driving the accelerated expansion of the universe? What if dark energy or …

The goal of this contribution is to present the properties of a class of quantum bouncing
models in which the quantum bounce originates from the Dirac canonical quantization of a …

A bstract We study the gravitational production of super-Hubble-mass dark matter in the very
early universe. We first review the simplest scenario where dark matter is produced mainly …

A very simple nonsingular inflationary model is presented where the unique matter content
is a radiation fluid. The model slowly contracts from a very large, almost empty and flat …

The effective approach in loop quantum cosmology (LQC) has provided means to obtain
predictions for observable quantities in LQC models. While an effective dynamics in LQC …

We investigate the behavior of bouncing Bianchi type IX “mixmaster” universes in general
relativity. This generalizes all previous studies of the cyclic behavior of closed spatially …

We investigate the interaction between scalar fields and radiation in the framework of warm
inflationary models by using the irreversible thermodynamics of open systems with matter …

We investigate cosmological scenarios containing one canonical scalar field with an
exponential potential in the context of bouncing models, in which the bounce happens due …

In the context of de Broglie–Bohm pilot-wave theory, violations of the Born rule are allowed
and can be considered as describing non-equilibrium distributions. We study the effects of …

We study and estimate probabilistic predictions for the duration of the preinflationary and
slow-roll phases after the bounce in loop quantum cosmology, determining how the …