Systematics of type IIA moduli stabilisation

• Main Authors: Fernando Marchesano, David Prieto, Joan Quirant, Pramod Shukla
• Format: Article
• Language: English
• Published: SpringerOpen 2020-11-01
• Series: Journal of High Energy Physics
• Subjects: Flux compactifications; Superstring Vacua
• Online Access: http://link.springer.com/article/10.1007/JHEP11(2020)113

Abstract We analyse the flux-induced scalar potential for type IIA orientifolds in the presence of p-form, geometric and non-geometric fluxes. Just like in the Calabi-Yau case, the potential presents a bilinear structure, with a factorised dependence on axions and saxions. This feature allows one to perform a systematic search for vacua, which we implement for the case of geometric backgrounds. Guided by stability criteria, we consider configurations with a particular on-shell F-term pattern, and show that no de Sitter extrema are allowed for them. We classify branches of supersymmetric and non-supersymmetric vacua, and argue that the latter are perturbatively stable for a large subset of them. Our solutions reproduce and generalise previous results in the literature, obtained either from the 4d or 10d viewpoint.