A new class of de Sitter vacua in type IIB large volume compactifications
Abstract We construct a new class of metastable de Sitter vacua of flux compactifications of type IIB string theory. These solutions provide a natural extension of the ‘Large Volume Scenario’ anti-de Sitter vacua, and can analogously be realised at parametrically large volume and weak string couplin...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-10-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | http://link.springer.com/article/10.1007/JHEP10(2017)193 |
| _version_ | 1818286676682735616 |
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| author | Diego Gallego M. C. David Marsh Bert Vercnocke Timm Wrase |
| author_facet | Diego Gallego M. C. David Marsh Bert Vercnocke Timm Wrase |
| author_sort | Diego Gallego |
| collection | DOAJ |
| description | Abstract We construct a new class of metastable de Sitter vacua of flux compactifications of type IIB string theory. These solutions provide a natural extension of the ‘Large Volume Scenario’ anti-de Sitter vacua, and can analogously be realised at parametrically large volume and weak string coupling, using standard N $$ \mathcal{N} $$ = 1 supergravity. For these new vacua, a positive vacuum energy is achieved from the inclusion of a small amount of flux-induced supersymmetry breaking in the complex structure and axio-dilaton sector, and no additional ‘uplift’ contribution (e.g. from anti-branes) is required. We show that the approximate no-scale structure of the effective theory strongly influences the spectrum of the stabilised moduli: one complex structure modulus remains significantly lighter than the supersymmetry breaking scale, and metastability requires only modest amounts of tuning. After discussing these general results, we provide a recipe for constructing de Sitter vacua on a given compactification manifold, and give an explicit example of a de Sitter vacuum for the compactification on the Calabi-Yau orientifold realised in ℂ ℙ 11169 4 $$ \mathbb{C}{\mathrm{\mathbb{P}}}_{11169}^4 $$ . Finally, we note that these solutions have intriguing implications for phenomenology, predicting no csuperpartners in the spectrum below ∼50 TeV, and no WIMP dark matter. |
| first_indexed | 2024-12-13T01:28:23Z |
| format | Article |
| id | doaj.art-869b5d7310ba4cd69124ba520a747aa1 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-13T01:28:23Z |
| publishDate | 2017-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-869b5d7310ba4cd69124ba520a747aa12022-12-22T00:04:04ZengSpringerOpenJournal of High Energy Physics1029-84792017-10-0120171013410.1007/JHEP10(2017)193A new class of de Sitter vacua in type IIB large volume compactificationsDiego Gallego0M. C. David Marsh1Bert Vercnocke2Timm Wrase3Escuela de Física, Universidad Pedagógica y Tecnológica de Colombia (UPTC)Department of Applied Mathematics and Theoretical Physics, University of CambridgeInstitute for Theoretical Physics, KU LeuvenInstitute for Theoretical Physics, TU WienAbstract We construct a new class of metastable de Sitter vacua of flux compactifications of type IIB string theory. These solutions provide a natural extension of the ‘Large Volume Scenario’ anti-de Sitter vacua, and can analogously be realised at parametrically large volume and weak string coupling, using standard N $$ \mathcal{N} $$ = 1 supergravity. For these new vacua, a positive vacuum energy is achieved from the inclusion of a small amount of flux-induced supersymmetry breaking in the complex structure and axio-dilaton sector, and no additional ‘uplift’ contribution (e.g. from anti-branes) is required. We show that the approximate no-scale structure of the effective theory strongly influences the spectrum of the stabilised moduli: one complex structure modulus remains significantly lighter than the supersymmetry breaking scale, and metastability requires only modest amounts of tuning. After discussing these general results, we provide a recipe for constructing de Sitter vacua on a given compactification manifold, and give an explicit example of a de Sitter vacuum for the compactification on the Calabi-Yau orientifold realised in ℂ ℙ 11169 4 $$ \mathbb{C}{\mathrm{\mathbb{P}}}_{11169}^4 $$ . Finally, we note that these solutions have intriguing implications for phenomenology, predicting no csuperpartners in the spectrum below ∼50 TeV, and no WIMP dark matter.http://link.springer.com/article/10.1007/JHEP10(2017)193Flux compactificationsSupergravity ModelsSuperstring Vacua |
| spellingShingle | Diego Gallego M. C. David Marsh Bert Vercnocke Timm Wrase A new class of de Sitter vacua in type IIB large volume compactifications Journal of High Energy Physics Flux compactifications Supergravity Models Superstring Vacua |
| title | A new class of de Sitter vacua in type IIB large volume compactifications |
| title_full | A new class of de Sitter vacua in type IIB large volume compactifications |
| title_fullStr | A new class of de Sitter vacua in type IIB large volume compactifications |
| title_full_unstemmed | A new class of de Sitter vacua in type IIB large volume compactifications |
| title_short | A new class of de Sitter vacua in type IIB large volume compactifications |
| title_sort | new class of de sitter vacua in type iib large volume compactifications |
| topic | Flux compactifications Supergravity Models Superstring Vacua |
| url | http://link.springer.com/article/10.1007/JHEP10(2017)193 |
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