${\alpha }^{\prime }$-Corrections and de Sitter Vacua - a Mirage?

Abstract

In this work we analyze the role of ${\alpha }^{\prime }$-corrections to type IIB orientifold compactifications in Kähler moduli stabilization and inflation. In particular, we propose a model independent scenario to achieve non-supersymmetric Minkowski and de Sitter vacua for geometric backgrounds with positive Euler-characteristic and generic number of Kähler moduli. The vacua are obtained by a tuning of the flux superpotential. Moreover, in the one-modulus case we argue for a mechanisms to achieve model independent slow-roll.

arXiv comment9 pages

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