De Sitter vacua — when are ‘subleading corrections’ really subleading?

Bento, Bruno Valeixo, Chakraborty, Dibya, Parameswaran, Susha and Zavala, Ivonne (2023) De Sitter vacua — when are ‘subleading corrections’ really subleading? Journal of High Energy Physics, 2023 (11). 75-.

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Official URL: http://dx.doi.org/10.1007/jhep11(2023)075

Abstract

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>We consider various string-loop, warping and curvature corrections that are expected to appear in type IIB moduli stabilisation scenarios. It has recently been argued, in the context of strongly-warped LVS de Sitter vacua, that it is impossible to achieve parametric suppression in all of these corrections simultaneously [1]. We investigate corrections in the context of the recently discovered weakly-warped LVS de Sitter vacua, which represent a distinct branch of solutions in type IIB flux compactifications. The weakly-warped solution is supported by small conifold flux numbers <jats:italic>MK</jats:italic> ≲ 32, but still requires a large flux contribution to the D3-tadpole, now from the bulk. Warping corrections become less problematic, and some corrections even help to reach the weakly-warped regime of parameter space. Other corrections continue to be dangerous and would require numerical coefficients to be computed — and found to be small — in order not to destroy the consistency of the weakly-warped LVS de Sitter solution. We motivate why this may be possible.</jats:p>

Item Type:	Article
Divisions:	Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	16 Jan 2024 09:04
Last Modified:	15 Mar 2024 09:04
DOI:	10.1007/jhep11(2023)075
Open Access URL:	https://link.springer.com/article/10.1007/JHEP11(2...
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3177859