A bouncing cosmology with an initial matter-dominated phase of contraction during which
scales which are currently probed with cosmological observations exit the Hubble radius …

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 …

We present a nonsingular bouncing cosmology using single scalar field matter with non-
trivial potential and non-standard kinetic term. The potential sources a dynamical attractor …

We investigate the bounce realization in the framework of DHOST cosmology, focusing on
the relation with observables. We perform a detailed analysis of the scalar and tensor …

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 present a new class of nonsingular bounce cosmology free from instabilities, using a
single scalar field coupled to gravity within the framework of the Degenerate Higher-Order …

We investigate nonsingular bounce realizations in the framework of ghost-free generalized
Galileon cosmology, which furthermore can be free of the anisotropy problem. Considering …

Assuming the existence of a scalar field which undergoes``ghost condensation" and which
has a suitably chosen potential, it is possible to obtain a non-singular bouncing cosmology …

Massless scalar fields originating in a quantum vacuum state acquire a scale-invariant
spectrum of fluctuations in a matter-dominated contracting universe. We show that these …

Abstract $ Circuit~ Complexity $, a well known computational technique has recently
become the backbone of the physics community to probe the chaotic behaviour and random …