788 citations · 5.2k across the 65 of their papers we have counts for
4 papers · 1 filter
Oh, wait, O8 de Sitter may be unstable!
Iosif Bena, G. Bruno De Luca, Mariana Graña +1
We analyze the stability of four-dimensional de Sitter vacua constructed by compactifying massive Type IIA supergravity in the presence of two O8 sources [1]. When embedded in Stri…
The Tadpole Problem
Iosif Bena, Johan Blåbäck, Mariana Graña +1
We examine the mechanism of moduli stabilization by fluxes in the limit of a large number of moduli. We conjecture that one cannot stabilize all complex-structure moduli in F-theor…
Exploring the landscape of heterotic strings on T^d
Anamaría Font, Bernardo Fraiman, Mariana Graña +2
Compactifications of the heterotic string on T^d are the simplest, yet rich enough playgrounds to uncover swampland ideas: the U(1)^{d+16} left-moving gauge symmetry gets enhanced…
Gaugino mass term for D-branes and Generalized Complex Geometry
Mariana Graña, Nicolas Kovensky, Ander Retolaza
We compute the four-dimensional gaugino mass for a Dp-brane extended in spacetime and wrapping a cycle on the internal geometry in a warped compactification with fluxes. Motivated…