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 status of bouncing cosmologies as alternatives to cosmological inflation for
providing a description of the very early universe, and a source for the cosmological …

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 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 …

Quoique le paradigme inflationaire soit maintenant communément accepté comme
représentant la meilleure explication des données cosmologiques, il n'est pas pour autant …

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 …

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 …

We investigate scalar particle creation in a set of bouncing models where the bounce occurs
due to quantum cosmological effects described by the Wheeler-DeWitt equation. The scalar …

Matter bounces refer to scenarios wherein the universe contracts at early times as in a
matter dominated epoch until the scale factor reaches a minimum, after which it starts …

A universe filled with a homogeneous scalar field exhibits “cosmological hysteresis.”
Cosmological hysteresis is caused by the asymmetry in the equation of state during …