Dark energy, Ricci-nonflat spaces, and the Swampland

Luis A. Anchordoqui , Ignatios Antoniadis (1) , Dieter Lüst , Jorge F. Soriano

1 LPTHE - Laboratoire de Physique Théorique et Hautes Energies

It was recently pointed out that the existence of dark energy imposes highly restrictive constraints on effective field theories that satisfy the Swampland conjectures. We provide a critical confrontation of these constraints with the cosmological framework emerging from the Salam-Sezgin model and its string realization by Cvetič, Gibbons, and Pope. We also discuss the implication of the constraints for string model building.

Mots clés: dark energy; effective field theory; string model; string

Domaines: Physique des Hautes Energies - Théorie [hep-th]; Astrophysique [astro-ph]; Physique des Hautes Energies - Phénoménologie [hep-ph]

Luis A. Anchordoqui, Ignatios Antoniadis, Dieter Lüst, Jorge F. Soriano. Dark energy, Ricci-nonflat spaces, and the Swampland. Phys.Lett.B, 2021, 816, pp.136199. ⟨10.1016/j.physletb.2021.136199⟩. ⟨hal-02863163⟩