Weakly coupled de Sitter vacua with fluxes and the swampland

• Verfasst von: Junghans, Daniel [VerfasserIn]
• Titel: Weakly coupled de Sitter vacua with fluxes and the swampland
• Verf.angabe: Daniel Junghans
• E-Jahr: 2019
• Jahr: 25 March 2019
• Umfang: 23 S.
• Fussnoten: Gesehen am 30.07.2019
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2019
• Band/Heft Quelle: (2019,3) Artikel-Nummer 150
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP03(2019)150
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Flux compactifications
• Sach-SW: Superstring Vacua
• K10plus-PPN: 1670236862

Abstract

It was recently argued that the swampland distance conjecture rules out dS vacua at parametrically large field distances. We point out that this conclusion can in principle be avoided in the presence of large fluxes that are not bounded by a tadpole cancellation condition. We then study this possibility in the concrete setting of classical type IIA flux compactifications with (anti-)O6-planes, (anti-)D6-branes and/or KK monopoles and show that, nonetheless, parametrically controlled dS vacua are strongly constrained. In particular, we find that such dS vacua are ruled out at parametrically large volume and/or parametrically small string coupling. We also find obstructions in the general case where the parametrically large field is an arbitrary field combination.