Bruno Bento (IFT Madrid)

de Sitter Hunting on the Riemann-flat Landscape

Abstract: de Sitter vacua are notoriously hard to find in String Theory, despite the strong cosmological motivation for them in the context of accelerated expansion. In part, this stems from the complexity of the usual ingredients. In this talk, I will briefly outline our attempt to circumvent this complexity by combining Riemann-flat manifolds, Casimir energy and fluxes. I will present a well-controlled de Sitter maximum in M-theory, several de Sitter no-gos in supergravity, and a map between the search for de Sitter vacua and the CFT bootstrap, which could prove very useful for the scan of the Riemann-flat landscape.