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 critically review the role of cosmological moduli in determining the post-inflationary
history of the universe. Moduli are ubiquitous in string and M-theory constructions of beyond …

Primordial black holes (PBH) have been shown to arise from high peaks in the matter power
spectra of multi-field models of inflation. Here we show, with a simple toy model, that it is …

The past two decades have seen transformative advances in cosmology and string theory.
Observations of the cosmic microwave background have revealed strong evidence for …

We present a simple mechanism for obtaining large-field inflation, and hence a gravitational
wave signature, from string theory compactified on twisted tori. For nil manifolds, we obtain a …

The computation of the primordial power spectrum in multi-field inflation models requires us
to correctly account for all relevant interactions between adiabatic and non-adiabatic modes …

We present a model for cosmological inflation based on a no-scale supergravity sector with
an SU (2, 1)/SU (2)× U (1) Kähler potential, a single modulus T, and an inflaton superfield Φ …

The nature of Dark Matter (DM) is one of the remaining mysteries of Modern Cosmology. We
know it exists since at least 1933, from the first observations of galaxy cluster dynamics by …

Within canonical single field inflation models, we provide a method to reverse engineer and
reconstruct the inflaton potential from a given power spectrum. This is not only a useful tool …

Abstract Models of cosmological inflation resembling the Starobinsky R+R 2 model emerge
naturally among the effective potentials derived from no-scale SU (N, 1)/SU (N)× U (1) …