De Sitter vacua -- when are `subleading corrections' really subleading?
Abstract
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 \cite{Junghans:2022exo}. 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, supported by small conifold flux numbers . Warping corrections become less problematic in this regime, 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.
Keywords
Cite
@article{arxiv.2306.07332,
title = {De Sitter vacua -- when are `subleading corrections' really subleading?},
author = {Bruno Valeixo Bento and Dibya Chakraborty and Susha Parameswaran and Ivonne Zavala},
journal= {arXiv preprint arXiv:2306.07332},
year = {2023}
}
Comments
35 pages, 5 figures and 3 tables; matches published version