De Sitter vacua — when are ‘subleading corrections’ really subleading?

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

doi:10.1007/jhep11(2023)075

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De Sitter vacua — when are ‘subleading corrections’ really subleading?

Bruno Valeixo Bento

, Dibya Chakraborty

, Susha Parameswaran, Ivonne Zavala Carrasco

Journal of High Energy Physics, Volume: 2023, Issue: 11

Swansea University Author: Ivonne Zavala Carrasco

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DOI (Published version): 10.1007/jhep11(2023)075

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 corre...

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Published in:	Journal of High Energy Physics
ISSN:	1029-8479
Published:	Springer Science and Business Media LLC 2023
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URI:	https://cronfa.swan.ac.uk/Record/cronfa65055
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spelling	v2 65055 2023-11-21 De Sitter vacua — when are ‘subleading corrections’ really subleading? 2fb8d4bb665e9a89d3b3478c17f646f8 0000-0002-5589-9928 Ivonne Zavala Carrasco Ivonne Zavala Carrasco true false 2023-11-21 SPH 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 [1]. 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. The weakly-warped solution is supported by small conifold flux numbers MK ≲ 32, but still requires a large flux contribution to the D3-tadpole, now from the bulk. Warping corrections become less problematic, 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. We motivate why this may be possible. Journal Article Journal of High Energy Physics 2023 11 Springer Science and Business Media LLC 1029-8479 Flux Compactifications; Superstring Vacua 13 11 2023 2023-11-13 10.1007/jhep11(2023)075 Data access statement: no new data were generated for this work. COLLEGE NANME Physics COLLEGE CODE SPH Swansea University Other STFC (ST/T000813/1) 2024-03-08T13:50:59.2139472 2023-11-21T10:40:36.8142646 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Bruno Valeixo Bento 0000-0003-4703-5318 1 Dibya Chakraborty 0000-0002-0001-1645 2 Susha Parameswaran 3 Ivonne Zavala Carrasco 0000-0002-5589-9928 4 65055__29066__c81bf988530d46cb94e49dd40e89da47.pdf 65055.pdf 2023-11-21T10:43:23.4717043 Output 1478597 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 https://creativecommons.org/licenses/by/4.0/
title	De Sitter vacua — when are ‘subleading corrections’ really subleading?
spellingShingle	De Sitter vacua — when are ‘subleading corrections’ really subleading? Ivonne Zavala Carrasco
title_short	De Sitter vacua — when are ‘subleading corrections’ really subleading?
title_full	De Sitter vacua — when are ‘subleading corrections’ really subleading?
title_fullStr	De Sitter vacua — when are ‘subleading corrections’ really subleading?
title_full_unstemmed	De Sitter vacua — when are ‘subleading corrections’ really subleading?
title_sort	De Sitter vacua — when are ‘subleading corrections’ really subleading?
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	2023
container_issue	11
publishDate	2023
institution	Swansea University
issn	1029-8479
doi_str_mv	10.1007/jhep11(2023)075
publisher	Springer Science and Business Media LLC
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description	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 [1]. 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. The weakly-warped solution is supported by small conifold flux numbers MK ≲ 32, but still requires a large flux contribution to the D3-tadpole, now from the bulk. Warping corrections become less problematic, 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. We motivate why this may be possible.
published_date	2023-11-13T13:50:55Z
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De Sitter vacua — when are ‘subleading corrections’ really subleading?

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