A new de Sitter solution with a weakly warped deformed conifold

Bento, Bruno Valeixo, Chakraborty, Dibya, Parameswaran, Susha and Zavala, Ivonne (2021) A new de Sitter solution with a weakly warped deformed conifold. JOURNAL OF HIGH ENERGY PHYSICS, 2021 (12). 124-.

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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 K\"ahler 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.

Item Type:	Article
Additional Information:	36 pages, 7 figures and 4 tables; references added and minor typos fixed
Uncontrolled Keywords:	Flux compactifications, Superstring Vacua
Divisions:	Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	04 Mar 2022 08:11
Last Modified:	15 Mar 2024 09:04
DOI:	10.1007/JHEP12(2021)124
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3150069