4 papers
de Sitter in non-supersymmetric string theories: no-go theorems and brane-worlds
Ivano Basile, Stefano Lanza
We study de Sitter configurations in ten-dimensional string models where supersymmetry is either absent or broken at the string scale. To this end, we derive expressions for the co…
Brane annihilation in non-supersymmetric strings
Riccardo Antonelli, Ivano Basile
In this paper we study non-perturbative instabilities in Anti de-Sitter vacua arising from flux compactifications of string models with broken supersymmetry. In the semi-classical…
On All-Order Higher-Point - Effective Actions
Riccardo Antonelli, Ivano Basile, Ehsan Hatefi
In this paper we derive a class of contributions to all orders in to the effective action of D-brane-anti D-brane systems in Type II String Theory, considering an amplitude in…
On Classical Stability with Broken Supersymmetry
I. Basile, J. Mourad, A. Sagnotti
We study the perturbative stability of four settings that arise in String Theory, when dilaton potentials accompany the breaking of Supersymmetry, in the USp(32) and U(32) orientif…