English

Brief overview of Candidate de Sitter Vacua

High Energy Physics - Theory 2025-05-02 v1 High Energy Physics - Phenomenology

Abstract

We review compactifications of type IIB string theory which produce de Sitter vacua to leading order in the α\alpha^\prime and gsg_s expansions in line with the scenario proposed by Kachru, Kallosh, Linde, and Trivedi. We detail specific Calabi-Yau orientifold compactifications incorporating the non-perturbative superpotential from Euclidean D3-branes, the full flux-induced superpotential, and the K\"ahler potential evaluated at string tree level but retaining all orders in α\alpha'. Each model hosts a Klebanov-Strassler throat featuring a single anti-D3-brane. The energy associated with this supersymmetry-breaking source, computed at leading order in α\alpha', lifts the minimum to a metastable de Sitter vacuum with all moduli stabilised. A key open challenge is the identification of vacua that remain stable when including additional corrections; an endeavour for which this study provides a solid foundation. This work is a contribution to the proceedings of the Corfu Summer Institute 2024 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2024) and is based on arXiv:2406.13751.

Keywords

Cite

@article{arxiv.2505.00149,
  title  = {Brief overview of Candidate de Sitter Vacua},
  author = {Andreas Schachner},
  journal= {arXiv preprint arXiv:2505.00149},
  year   = {2025}
}

Comments

22 pages, 8 figures, contribution to the proceedings of the Corfu Summer Institute 2024 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2024)