119 citations · 323 across the 10 of their papers we have counts for
10 papers
Supersymmetric scale-separated AdS orientifold vacua of type IIB
Vincent Van Hemelryck
I construct supersymmetric AdS vacua of type IIB string theory that exhibit parametric scale separation in the controlled regime. These solutions arise from compactifications o…
Weak -manifolds and scale separation in M-theory from type IIA backgrounds
Vincent Van Hemelryck
This work provides evidence for the existence of supersymmetric and scale-separated AdS vacua in M-theory of the Freund-Rubin type. The internal space has weak -holonomy,…
Charged Nariai black holes on the dark bubble
Ulf Danielsson, Vincent Van Hemelryck
In this paper, we realise the charged Nariai black hole on a braneworld from a nucleated bubble in AdS, known as the dark bubble model. Geometrically, the black hole takes the…
Connecting flux vacua through scalar field excursions
Gary Shiu, Flavio Tonioni, Vincent Van Hemelryck +1
We show how flux vacua that differ from each other in flux quanta can be seen as different vacua in a single scalar potential of an enlarged field space, which resolves the separat…
AdS scale separation and the distance conjecture
Gary Shiu, Flavio Tonioni, Vincent Van Hemelryck +1
It has been argued that orientifold vacua with fluxes in type IIA string theory can achieve moduli stabilisation and arbitrary decoupling between the AdS and KK scales upon sending…
Scale-separated AdS vacua from -orientifolds using bispinors
Vincent Van Hemelryck
In this paper, minimal supersymmetric AdS solutions on -orientifolds of type IIA and IIB supergravity are studied. These are obtained by techniques of the bispinor formali…
Over-extremal brane shells from string theory?
Ulf Danielsson, Vincent Van Hemelryck, Thomas Van Riet
We demonstrate that, if the usual phenomenological compactifications of IIB string theory with warped throats and anti-branes make sense, there must exist spherical brane shells in…
Scale-separated AdS vacua of IIA orientifolds and M-theory
Niccolò Cribiori, Daniel Junghans, Vincent Van Hemelryck +2
We revisit various aspects of AdS flux vacua with scale separation in type II supergravity and M-theory. We show that massless IIA allows both weakly and strongly coupled solut…
A 10d view on the KKLT AdS vacuum and uplifting
F. F. Gautason, V. Van Hemelryck, T. Van Riet +1
We analyse the ten-dimensional Einstein equations in the KKLT setting. We verify that the quartic gaugino term is needed to remove singularities in the on-shell action as suggested…
The tension between 10D supergravity and dS uplifts
F. F. Gautason, V. Van Hemelryck, T. Van Riet
We elaborate on the recent work of Moritz et. al. where it is argued that anti-brane uplifting in KKLT models never leads to dS vacua. This is due to flattening effects in the effe…