We determine the N=1 low energy effective action for compactifications of type IIB string theory
on compact Calabi–Yau orientifolds in the presence of background fluxes from a Kaluza–…

The N=1 effective action for generic type IIA Calabi–Yau orientifolds in the presence of
background fluxes is computed from a Kaluza–Klein reduction. The Kähler potential, the gauge …

It has been conjectured that in theories consistent with quantum gravity infinite distances in
field space coincide with an infinite tower of states becoming massless exponentially fast in …

The existence of Abelian gauge symmetries in four-dimensional F-theory compactifications
depends on the global geometry of the internal Calabi-Yau four-fold and has important …

We systematically analyse globally consistent SU(5) GUT models on intersecting D7-branes
in genuine Calabi–Yau orientifolds with O3- and O7-planes. Beyond the well-known …

We study the charged chiral matter spectrum of four-dimensional F-theory compactifications
on elliptically fibered Calabi-Yau fourfolds by using the dual M-theory description. A chiral …

We construct global F-theory GUT models on del Pezzo surfaces in compact Calabi–Yau
fourfolds realized as complete intersections of two hypersurface constraints. The intersections …

In this paper we compute the N =1 effective low energy action for a stack of N space–time
filling D3-branes in generic type IIB Calabi–Yau orientifolds with non-trivial background fluxes …

The four-dimensional N=1 effective action of F-theory compactified on a Calabi–Yau fourfold
is studied by lifting a three-dimensional M-theory compactification. The lift is performed by …

The Swampland Distance Conjecture suggests that an infinite tower of modes becomes
exponentially light when approaching a point that is at infinite proper distance in field space. In …