60 citations · 156 across the 11 of their papers we have counts for
8 papers · 1 filter
Chiral global embedding of Fibre Inflation with uplift
Michele Cicoli, Antonella Grassi, Osmin Lacombe +1
We carefully analyse the challenges posed by the construction of type IIB chiral global embeddings of Fibre Inflation with uplift to a de Sitter vacuum. We pre…
Higher-derivative supersymmetric effective field theories
Osmin Lacombe, Lorenzo Paoloni, Francisco G. Pedro
In this paper we study higher-derivative supersymmetric effective field theories focusing on the systematic procedure for the elimination of ghosts from the spectrum. Particular at…
Flux vacua in type IIB compactifications on orbifolds: their finiteness and minimal string coupling
Ignatios Antoniadis, Anthony Guillen, Osmin Lacombe
We perform a detailed study of (supersymmetric) moduli stabilisation in type IIB toroidal orientifolds with fluxes. We provide strong evidence towards exhaustion of the finite numb…
Self-tuning of the cosmological constant in brane-worlds with
Osmin Lacombe, Shinji Mukohyama
We revisit the idea of self-tuning the observed cosmological constant to a vanishing value and promote it to a selection criterion of brane-world models, in which our Universe is d…
Hybrid inflation and waterfall field in string theory from D7-branes
Ignatios Antoniadis, Osmin Lacombe, George K. Leontaris
We present an explicit string realisation of a cosmological inflationary scenario we proposed recently within the framework of type IIB flux compactifications in the presence of th…
Inflation near a metastable de Sitter vacuum from moduli stabilisation
Ignatios Antoniadis, Osmin Lacombe, George K. Leontaris
We study the cosmological properties of a metastable de Sitter vacuum obtained recently in the framework of type IIB flux compactifications in the presence of three D7-brane stacks…
Note on supersymmetric Dirac-Born-Infeld action with Fayet-Iliopoulos term
Ignatios Antoniadis, Hongliang Jiang, Osmin Lacombe
We study the Dirac-Born-Infeld (DBI) action with one linear and one non-linear supersymmetry in the presence of a constant Fayet-Iliopoulos (FI) D-term added explicitly or through…
Supersymmetry Deformations, Electromagnetic Duality and Dirac-Born-Infeld Actions
Ignatios Antoniadis, Hongliang Jiang, Osmin Lacombe
We study the general deformation of supersymmetry transformations of a vector multiplet that forms a (constant) triplet under the R-symmetry corresponding to…