De Sitter solutions have been recently conjectured to be incompatible with quantum gravity.
In this paper we critically assess the progress and challenges of different mechanisms to …

A bstract We study quantum corrections in four-dimensional theories with N= 1
supersymmetry in the context of Quantum Gravity Conjectures. According to the Emergent …

A bstract Type II string theory and M-theory admit flux configurations that break
supersymmetry below the Kaluza-Klein scale. These backgrounds play a central role in most …

A bstract We address the open question of performing an explicit stabilisation of all closed
string moduli (including dilaton, complex structure and Kähler moduli) in fluxed type IIB …

A bstract We perform a systematic analysis of moduli stabilisation for weakly coupled
heterotic string theory compactified on internal manifolds which are smooth Calabi-Yau …

A bstract In the framework of type IIB string compactifications on Calabi-Yau orien-tifolds we
describe how to construct consistent global embeddings of models with fractional D3-branes …

It is known that the four-dimensional effective field theory arising from heterotic string theory
is general relativity with both a Chern-Simons and Gauss-Bonnet term. We study the …

We introduce a moment map picture for holomorphic string algebroids where the
Hamiltonian gauge action is described by means of inner automorphisms of Courant …

We develop a new class of supergravity cosmological models where inflation is induced by
terms in the Kähler potential which mix a nilpotent superfield S with a chiral sector Φ. As the …

Heterotic vacua of string theory are realised, at large radius, by a compact threefold with
vanishing first Chern class together with a choice of stable holomorphic vector bundle …