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De Sitter vacua — when are ‘subleading corrections’ really subleading?
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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...
| Published in: | Journal of High Energy Physics |
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| ISSN: | 1029-8479 |
| Published: |
Springer Science and Business Media LLC
2023
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa65055 |
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| 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 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. |
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| Item Description: |
Data access statement: no new data were generated for this work. |
| Keywords: |
Flux Compactifications; Superstring Vacua |
| College: |
Faculty of Science and Engineering |
| Funders: |
STFC (ST/T000813/1) |
| Issue: |
11 |