We present a pedagogical overview of flux compactifications in string theory, from the basic
ideas to the most recent developments. We concentrate on closed-string fluxes in type-II …

M theory compactifications on G2 holonomy manifolds, whilst supersymmetric, require
singularities in order to obtain non-Abelian gauge groups, chiral fermions and other …

A bstract We observe a direct relation between the existence of fundamental axionic strings,
dubbed EFT strings, and infinite distance limits in 4d\(\mathcal {N}\)= 1 EFTs coupled to …

String theory is one of the most exciting and challenging areas of modern theoretical
physics. This book guides the reader from the basics of string theory to recent developments …

The octonions are the largest of the four normed division algebras. While somewhat
neglected due to their nonassociativity, they stand at the crossroads of many interesting …

A bstract Infinite distance limits in the moduli space of a quantum gravity theory are
characterized by having infinite towers of states becoming light, as dictated by the Distance …

All purely bosonic supersymmetric solutions of minimal supergravity in five dimensions are
classified. The solutions preserve either one half or all of the supersymmetry. Explicit …

We give an overview of moduli stabilization in compactifications of string theory. We
summarize current methods for construction and analysis of vacua with stabilized moduli …

This article consists of some loosely related remarks about the geometry of G_2-structures
on 7-manifolds and is partly based on old unpublished joint work with two other people: F …

Generalized global symmetries are a common feature of many quantum field theories
decoupled from gravity. By contrast, in quantum gravity/the Swampland program, it is widely …