A new de Sitter solution with a weakly warped deformed conifold

Bento, Bruno Valeixo; Chakraborty, Dibya; Parameswaran, Susha; Carrasco, Ivonne Zavala

doi:10.1007/jhep12(2021)124

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A new de Sitter solution with a weakly warped deformed conifold

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

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

Swansea University Author: Ivonne Zavala Carrasco

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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...

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Published in:	Journal of High Energy Physics
ISSN:	1029-8479
Published:	Springer Science and Business Media LLC 2021
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URI:	https://cronfa.swan.ac.uk/Record/cronfa61263
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spelling	2022-10-13T13:51:41.0105699 v2 61263 2022-09-17 A new de Sitter solution with a weakly warped deformed conifold 2fb8d4bb665e9a89d3b3478c17f646f8 0000-0002-5589-9928 Ivonne Zavala Carrasco Ivonne Zavala Carrasco true false 2022-09-17 SPH 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. Journal Article Journal of High Energy Physics 2021 12 Springer Science and Business Media LLC 1029-8479 Flux compactifications; Superstring Vacua 17 12 2021 2021-12-17 10.1007/jhep12(2021)124 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University Article funded by SCOAP3 2022-10-13T13:51:41.0105699 2022-09-17T12:54:15.6000394 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Bruno Valeixo Bento 1 Dibya Chakraborty 2 Susha Parameswaran 3 Ivonne Zavala Carrasco 0000-0002-5589-9928 4 61263__25450__2a8ddca656fe4bb3a111460a376ab53d.pdf 61263_VoR.pdf 2022-10-13T13:50:56.0064638 Output 2880423 application/pdf Version of Record true This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) true eng http://creativecommons.org/licenses/by/4.0/
title	A new de Sitter solution with a weakly warped deformed conifold
spellingShingle	A new de Sitter solution with a weakly warped deformed conifold Ivonne Zavala Carrasco
title_short	A new de Sitter solution with a weakly warped deformed conifold
title_full	A new de Sitter solution with a weakly warped deformed conifold
title_fullStr	A new de Sitter solution with a weakly warped deformed conifold
title_full_unstemmed	A new de Sitter solution with a weakly warped deformed conifold
title_sort	A new de Sitter solution with a weakly warped deformed conifold
author_id_str_mv	2fb8d4bb665e9a89d3b3478c17f646f8
author_id_fullname_str_mv	2fb8d4bb665e9a89d3b3478c17f646f8_***_Ivonne Zavala Carrasco
author	Ivonne Zavala Carrasco
author2	Bruno Valeixo Bento Dibya Chakraborty Susha Parameswaran Ivonne Zavala Carrasco
format	Journal article
container_title	Journal of High Energy Physics
container_volume	2021
container_issue	12
publishDate	2021
institution	Swansea University
issn	1029-8479
doi_str_mv	10.1007/jhep12(2021)124
publisher	Springer Science and Business Media LLC
college_str	Faculty of Science and Engineering
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hierarchy_top_title	Faculty of Science and Engineering
hierarchy_parent_id	facultyofscienceandengineering
hierarchy_parent_title	Faculty of Science and Engineering
department_str	School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
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description	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.
published_date	2021-12-17T04:19:59Z
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score	10.998116

A new de Sitter solution with a weakly warped deformed conifold

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