1.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR88 papers
- Space Research InstituteRU63 papers
- Austrian Academy of SciencesAT59 papers
- Goddard Space Flight CenterUS54 papers
- Sorbonne UniversitéFR53 papers
- Imperial College LondonGB49 papers
- Southwest Research InstituteUS48 papers
- KTH Royal Institute of TechnologySE47 papers
- Laboratoire de Physique des PlasmasFR44 papers
- Uppsala UniversitySE43 papers
- École PolytechniqueFR38 papers
- University of California, BerkeleyUS36 papers
10 papers · 1 filter
A stringy realization of a small and positive cosmological constant in dark bubble cosmology
Ulf Danielsson, Oscar Henriksson, Daniel Panizo
In this paper we construct a stringy embedding of the dark bubble model of an expanding 4D cosmology with the help of branes rotating in extra dimensions. The universe rides a bubb…
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…
Gravitational waves in dark bubble cosmology
Ulf Danielsson, Daniel Panizo, Rob Tielemans
In this paper we construct the 5D uplift of 4D gravitational waves in de Sitter cosmology for the brane world scenario based on a nucleated bubble in AdS5. This makes it possible t…
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 higher-dimensional view on quantum cosmology
U. H. Danielsson, D. Panizo, R. Tielemans +1
We argue that the choice of boundary condition for the wave function in quantum cosmology depends on the UV completion of general relativity. We provide an explicit example using a…
Cosmic eggs to relax the cosmological constant
Thomas Hertog, Rob Tielemans, Thomas Van Riet
In theories with extra dimensions, the cosmological hierarchy problem can be thought of as the unnaturally large radius of the observable universe in Kaluza-Klein units. We sketch…
A comment on no-force conditions for black holes and branes
Thomas Van Riet
In the context of the Weak Gravity Conjecture the notion of quasi-extremality for black holes and branes was recently defined as the property of having either vanishing horizon siz…
Black holes as generalised Toda molecules
Wissam Chemissany, Jan Rosseel, Thomas Van Riet
In this note we compare the geodesic formalism for spherically symmetric black hole solutions with the black hole effective potential approach. The geodesic formalism is beneficial…
An obstacle to populating the string theory landscape
Matthew C Johnson, Magdalena Larfors
We construct domain walls and instantons in a class of models with coupled scalar fields, determining, in agreement with previous studies, that many such solutions contain naked ti…
Field dynamics and tunneling in a flux landscape
Matthew C Johnson, Magdalena Larfors
We investigate field dynamics and tunneling between metastable minima in a landscape of Type IIB flux compactifications, utilizing monodromies of the complex structure moduli space…