We review applications of string theory to cosmology, from primordial times to the present-
day accelerated expansion. Starting with a brief overview of cosmology and string …

We study the formation of primordial black holes and the generation of gravitational waves in
a class of cosmological models that are direct supersymmetric analogs of the …

Correlation functions of primordial density fluctuations provide an exciting probe of the
physics governing the earliest moments of our Universe. However, the standard approach to …

In inflationary models that produce a spike of power on short scales, back-reaction of small-
scale substructure onto large-scale modes is enhanced. Loop corrections that quantify this …

Recently multi-field inflation models that can produce large scalar fluctuations on small
scales have drawn a lot of attention, primarily because they could lead to primordial black …

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 …

Heavy scalar fields can undergo an instability during inflation as a result of their kinetic
couplings with the inflaton. This is known as the geometrical destabilization of inflation, as it …

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 …

A bstract Recent studies of inflation with multiple scalar fields have highlighted the
importance of non-canonical kinetic terms in novel types of inflationary solutions. This …

Abstract Future Cosmic Microwave Background (CMB) experiments will deliver extremely
accurate measurements of the E-modes pattern of the CMB polarization field. Given the …