English

De Sitter vacua -- when are `subleading corrections' really subleading?

High Energy Physics - Theory 2023-10-31 v2

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 MK32MK \lesssim 32. 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