The production of a stochastic background of gravitational waves is a fundamental
prediction of any cosmological inflationary model. The features of such a signal encode …

This book lays out the scientific goals to be addressed by the next-generation ground-based
cosmic microwave background experiment, CMB-S4, envisioned to consist of dedicated …

We consider mechanisms for producing a significant population of primordial black holes
(PBHs) within string inspired single field models of inflation. The production of PBHs …

We consider a mechanism for producing a significant population of primordial black holes
(PBHs) and an observable stochastic gravitational wave background (SGWB) within string …

Recent results from the BICEP, Keck Array and Planck Collaborations demonstrate that
Galactic foregrounds are an unavoidable obstacle in the search for evidence of inflationary …

We show the existence of a general mechanism by which heavy scalar fields can be
destabilized during inflation, relying on the fact that the curvature of the field space manifold …

We introduce a numerical method specifically designed for investigating generic multifield
models of inflation where a number of scalar fields ϕ K are minimally coupled to gravity and …

A bstract In this paper we will study R 2-like inflation in a non-local modification of gravity
which contains quadratic in Ricci scalar and Weyl tensor terms with analytic infinite …

We investigate the generation of features at large scales in the primordial power spectrum
(PPS) when inflation is driven by two scalar fields. In canonical single field models of …

I review and discuss the possible implications for inflation resulting from considering new
physics in light of the Hubble tension. My study is motivated by a simple argument that the …