A note on the magnitude of the flux superpotential
The magnitude of the flux superpotential W flux plays a crucial role in determining the scales of IIB string compactifications after moduli stabilisation. It has been argued that values of W flux ≠1 are preferred, and even required for physical and consistency reasons. This note revisits these arg...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2014
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| _version_ | 1826270798187331584 |
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| author | Cicoli, M Conlon, J Maharana, A Quevedo, F |
| author_facet | Cicoli, M Conlon, J Maharana, A Quevedo, F |
| author_sort | Cicoli, M |
| collection | OXFORD |
| description | The magnitude of the flux superpotential W flux plays a crucial role in determining the scales of IIB string compactifications after moduli stabilisation. It has been argued that values of W flux ≠1 are preferred, and even required for physical and consistency reasons. This note revisits these arguments. We establish that the couplings of heavy Kaluza-Klein modes to light states scale with the internal volume as g ∼ M KK /M P ∼ -2/3 ≠1 and argue that consistency of the superspace derivative expansion requires gF/M 2 ∼ m 3/2 /M KK ≠1, where F is the auxiliary field of the light fields and M the ultraviolet cutoff. This gives only a mild constraint on the flux superpotential, W flux ≠1/3, which can be easily satisfied for (1) values of W flux. This regime is also statistically favoured and makes the Bousso-Polchinski mechanism for the vacuum energy hierarchically more efficient. © 2014 The Author(s). |
| first_indexed | 2024-03-06T21:46:28Z |
| format | Journal article |
| id | oxford-uuid:49c460ca-0f1f-47d8-a678-f1cb1aa5ccfb |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:46:28Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | oxford-uuid:49c460ca-0f1f-47d8-a678-f1cb1aa5ccfb2022-03-26T15:33:36ZA note on the magnitude of the flux superpotentialJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:49c460ca-0f1f-47d8-a678-f1cb1aa5ccfbEnglishSymplectic Elements at Oxford2014Cicoli, MConlon, JMaharana, AQuevedo, FThe magnitude of the flux superpotential W flux plays a crucial role in determining the scales of IIB string compactifications after moduli stabilisation. It has been argued that values of W flux ≠1 are preferred, and even required for physical and consistency reasons. This note revisits these arguments. We establish that the couplings of heavy Kaluza-Klein modes to light states scale with the internal volume as g ∼ M KK /M P ∼ -2/3 ≠1 and argue that consistency of the superspace derivative expansion requires gF/M 2 ∼ m 3/2 /M KK ≠1, where F is the auxiliary field of the light fields and M the ultraviolet cutoff. This gives only a mild constraint on the flux superpotential, W flux ≠1/3, which can be easily satisfied for (1) values of W flux. This regime is also statistically favoured and makes the Bousso-Polchinski mechanism for the vacuum energy hierarchically more efficient. © 2014 The Author(s). |
| spellingShingle | Cicoli, M Conlon, J Maharana, A Quevedo, F A note on the magnitude of the flux superpotential |
| title | A note on the magnitude of the flux superpotential |
| title_full | A note on the magnitude of the flux superpotential |
| title_fullStr | A note on the magnitude of the flux superpotential |
| title_full_unstemmed | A note on the magnitude of the flux superpotential |
| title_short | A note on the magnitude of the flux superpotential |
| title_sort | note on the magnitude of the flux superpotential |
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