We review recent trends in inflationary dynamics in the context of viable modified gravity
theories. After providing a general overview of the inflationary paradigm emphasizing on …

Abstract Euclid is a European Space Agency medium-class mission selected for launch in
2020 within the cosmic vision 2015–2025 program. The main goal of Euclid is to understand …

Primordial black holes are produced in a minimal UV extension to the Higgs inflation with an
included R 2 term. We show that for parameters consistent with Standard Model …

In this article we present an alternative formalism for the inflationary phenomenology of
rescaled Einstein-Gauss-Bonnet models which are in agreement with the GW170817 event …

In this work we shall study a possible pre-inflationary scenario for our Universe and how this
might be realized by f (R) gravity. Specifically, we shall introduce a scenario in which the …

In this work we study the inflationary framework of Einstein-Gauss-Bonnet theories which
produce a primordial gravitational wave speed that respects the constraint imposed by the …

The running of the Higgs self coupling may lead to numerous phenomena in early universe
cosmology. In this paper we introduce a scenario where the Higgs running induces turns in …

Asymptotic Safety implies that observables including scattering amplitudes remain finite at
the highest energy scales. Traditionally, this feature is connected to an interacting fixed point …

According to the asymptotic-safety conjecture, the gravitational renormalization group flow
features an ultraviolet-attractive fixed point that makes the theory renormalizable and …

A bstract We employ the curvature expansion of the quantum effective action for gravity-
matter systems to construct graviton-mediated scattering amplitudes for non-minimally …