A bstract We consider finite deformations of the Hull-Strominger system. Starting from the
heterotic superpotential, we identify complex coordinates on the off-shell parameter space …

A bstract We revisit our construction of mirror symmetries for compactifications of Type II
superstrings on twisted connected sum G 2 manifolds. For a given G 2 manifold, we discuss …

A bstract We realise the Shatashvili-Vafa superconformal algebra for G 2 string
compactifications by combining Odake and free conformal algebras following closely the …

In this thesis we study string compactifications on manifolds equipped with a $ G $-structure,
placing a special emphasis on the interplay between geometry and physics. We follow two …

A bstract We analyse the geometry of generic Minkowski\(\mathcal {N}\)= 1, D= 4 flux
compactifications in string theory, the default backgrounds for string model building. In M …

We review the construction of almost contact metric (three-) structures, abbreviated ACM (3)
S, on manifolds with a $ G_2 $ structure. These are of interest for certain supersymmetric …

A bstract A new symmetry of (1, 0) supersymmetric non-linear σ-models in two dimensions
with Fermi and mass sectors is introduced. It is a generalisation of the so-called special …

A bstract A recent theorem of Foscolo-Haskins-Nordström [1] which constructs complete G 2-
holonomy orbifolds from circle bundles over Calabi-Yau cones can be utilised to construct …

We construct new families of solutions of the heterotic G2 system on squashed
homogeneous 3-Sasakian manifolds, that is, using squashed metrics on either the 7-sphere …

Compactifications of the heterotic string, to first order in the $\alpha'$ expansion, on
manifolds with integrable $ G_2 $ structure give rise to three-dimensional ${\cal N}= 1 …