No Cover Image

Journal article 387 views 36 downloads

A new de Sitter solution with a weakly warped deformed conifold

Bruno Valeixo Bento, Dibya Chakraborty, Susha Parameswaran, Ivonne Zavala Carrasco Orcid Logo

Journal of High Energy Physics, Volume: 2021, Issue: 12

Swansea University Author: Ivonne Zavala Carrasco Orcid Logo

  • 61263_VoR.pdf

    PDF | Version of Record

    This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0)

    Download (2.75MB)

Check full text

DOI (Published version): 10.1007/jhep12(2021)124

Abstract

We revisit moduli stabilisation for type IIB flux compactifications that include a warped throat region corresponding to a warped deformed conifold, with an anti-D3-brane sitting at its tip. The warping induces a coupling between the conifold’s deformation modulus and the bulk volume modulus in the...

Full description

Published in: Journal of High Energy Physics
ISSN: 1029-8479
Published: Springer Science and Business Media LLC 2021
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa61263
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract: We revisit moduli stabilisation for type IIB flux compactifications that include a warped throat region corresponding to a warped deformed conifold, with an anti-D3-brane sitting at its tip. The warping induces a coupling between the conifold’s deformation modulus and the bulk volume modulus in the Kähler potential. Previous works have studied the scalar potential assuming a strong warping such that this coupling term dominates, and found that the anti-D3-brane uplift may destabilise the conifold modulus and/or volume modulus, unless flux numbers within the throat are large, which makes tadpole cancellation a challenge. We explore the regime of parameter space corresponding to a weakly-but-still warped throat, such that the coupling between the conifold and volume moduli is subdominant. We thus discover a new metastable de Sitter solution within the four-dimensional effective field theory. We discuss the position of this de Sitter vacuum in the string theory landscape and swampland.
Keywords: Flux compactifications; Superstring Vacua
College: Faculty of Science and Engineering
Funders: Article funded by SCOAP3
Issue: 12

Similar Items