Moduli stabilization and cosmology of type IIB on SU(2)-structure orientifolds

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Caviezel, C.; Wrase, T.; Zagermann, M.: Moduli stabilization and cosmology of type IIB on SU(2)-structure orientifolds. In: Journal of High Energy Physics 2010 (2010), Nr. 4, 11. DOI:

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Sum total of downloads: 76

We consider type IIB flux compactifications on six-dimensional SU(2)-structure manifolds with O5- and O7-planes. These six-dimensional spaces allow not only for F 3 and H3 fluxes but also for F 1 and F 5 fluxes. We derive the four-dimensional N = 1 scalar potential for such compactifications and present one explicit example of a fully stabilized AdS vacuum with large volume and small string coupling. We then discuss cosmological aspects of these compactifications and derive several no-go theorems that forbid dS vacua and slow-roll inflation under certain conditions. We also study concrete examples of cosets and twisted tori and find that our no-go theorems forbid dS vacua and slow-roll inflation in all but one of them. For the latter we find a dS critical point with o numerically zero. However, the point has two tachyons and eta-parameter n ̃-3.1.
License of this version: CC BY 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2010
Appears in Collections:Fakultät für Mathematik und Physik

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2 image of flag of United States United States 2 2.63%
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5 image of flag of India India 1 1.32%

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