Understanding KKLT from a 10d perspective

• Verfasst von: Hamada, Yuta [VerfasserIn]
• Verfasst von: Hebecker, Arthur [VerfasserIn]
• Verfasst von: Soler, Pablo [VerfasserIn]
• Titel: Understanding KKLT from a 10d perspective
• Verf.angabe: Yuta Hamada, Arthur Hebecker, Gary Shiu and Pablo Soler
• E-Jahr: 2019
• Jahr: 11 Jun 2019
• Umfang: 25 S.
• Fussnoten: Gesehen am 09.10.2020
• Titel Quelle: Enthalten in: De.arxiv.org
• Ort Quelle: [S.l.] : Arxiv.org, 1991
• Jahr Quelle: 2019
• Band/Heft Quelle: (2019) Artikel-Nummer 1902.01410, 25 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• Sonstige Nr.: CCTP-2019-2, ITCP-IPP 2019/2, MAD-TH-19-02
• Sach-SW: Astrophysics - Cosmology and Nongalactic Astrophysics
• Sach-SW: High Energy Physics - Phenomenology
• Sach-SW: High Energy Physics - Theory
• K10plus-PPN: 1587641690

Abstract

Some of the most well-celebrated constructions of metastable de Sitter vacua from string theory, such as the KKLT proposal, involve the interplay of gaugino condensation on a D7-brane stack and an uplift by a positive tension object. These constructions have recently been challenged using arguments that rely on the trace-reversed and integrated 10d Einstein equation. We give a critical assessment of such concerns. We first relate an integrated 10d Einstein equation to the extremization condition for a 10d-derived 4d effective potential. Then we argue how to obtain the latter from a 10d action which incorporates gaugino condensation in a (recently proposed) manifestly finite, perfect-square form. This effective potential is consistent with 4d supergravity and does not present obstacles for an uplifted minimum. Moreover, within standard approximations, we understand the uplift explicitly in one of the popular versions of the integrated 10d equation. Our conclusion is that de Sitter constructions of the KKLT type cannot be dismissed simply based on the integrated 10d equations considered so far.