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 …

A bstract We study the Symmetry Topological Field Theory in holography associated with 4d
𝒩= 1 Super Yang-Mills theory with gauge algebra 𝔰𝔲 (M). From this, all the bulk symmetry …

We study the CMB observables in axion monodromy inflation. These well-motivated
scenarios for inflation in string theory have monomial potentials over super-Planckian field …

Several pulsar timing array (PTA) collaborations recently announced the first detection of a
stochastic gravitational wave (GW) background, leaving open the question of its source. We …

This paper contains an overview of some recent attempts of understanding supergravity and
string duals of four-dimensional gauge theories using the AdS/CFT correspondence. The …

We find a one-parameter family of new G2 holonomy metrics and demonstrate that it can be
extended to a two-parameter family. These metrics play an important role as the supergravity …

We discuss the geometry and topology of the complete, non-compact, Ricci-flat Stenzel
metric, on the tangent bundle of S n+ 1. We obtain explicit results for all the metrics, and …

We assemble a few remarks on the supergravity solution of hep-th/0007191, whose UV
asymptotic form was previously found in hep-th/0002159. First, by normalizing the RR fluxes …

We investigate solutions of type II supergravity which have the product Bbb R 1, 3× M 6
structure with non-compact M 6 factor and which preserve at least four supersymmetries. In …

We interpret D-strings at the bottom of the warped deformed conifold as axionic strings in the
dual cascading SU (N+M)× SU (N) gauge theory. The axion is a massless pseudo-scalar …