Curvature corrections to KPV

• Verfasst von: Hebecker, Arthur [VerfasserIn]
• Verfasst von: Schreyer, Simon [VerfasserIn]
• Verfasst von: Venken, Gerben [VerfasserIn]
• Titel: Curvature corrections to KPV
• Titelzusatz: do we need deep throats?
• Verf.angabe: Arthur Hebecker, Simon Schreyer and Gerben Venken
• E-Jahr: 2022
• Jahr: October 26, 2022
• Umfang: 29 S.
• Fussnoten: Gesehen am 17.11.2022
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2022
• Band/Heft Quelle: (2022), 10, Artikel-ID 166, Seite 1-29
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP10(2022)166
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: String and Brane Phenomenology
• Sach-SW: Superstring Vacua
• K10plus-PPN: 1822813166

Abstract

We consider α′2 curvature corrections to the action of an NS5-brane which plays the key role in the metastability analysis of warped anti-D3-brane uplifts by Kachru, Pearson and Verlinde (KPV). Such corrections can dramatically alter the KPV analysis. We find that for the α′2-corrections to be sufficiently small to recover essentially the leading-order KPV potential one needs a surprisingly large S3 radius, corresponding to gsM > 20. In the context of the Large Volume Scenario (LVS) this implies a D3-tadpole of at least (103-104). However, large α′2-corrections do not necessarily spoil the uplift in KPV. Rather, as the curvature corrections lower the tension of the brane, a novel uplifting mechanism suggests itself where the smallness of the uplift is achieved by a tuning of curvature corrections. A key underlying assumption is the existence of a dense discretuum of gs. This new mechanism does not require a deep warped throat, thereby sidestepping the main difficulty in uplifting KKLT and LVS. However, all of the above has to be treated as a preliminary exploration of possibilities since, at the moment, not all relevant corrections at the order α′2 are known.