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arXiv · 1512.04558

De Sitter from T-branes

Michele Cicoli·Fernando Quevedo·Roberto Valandro
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Abstract

Hidden sector D7-branes with non-zero gauge flux are a generic feature of type IIB compactifications. A non-vanishing Fayet-Iliopoulos term induced by non-zero gauge flux leads to a T-brane configuration. Expanding the D7-brane action around this T-brane background in the presence of three-form supersymmetry breaking fluxes, we obtain a positive definite contribution to the moduli scalar potential which can be used as an uplifting source for de Sitter vacua. In this way we provide a higher-dimensional understanding of known 4D mechanisms of de Sitter uplifting based on hidden sector F-terms which are non-zero because of D-term stabilisation.

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Michele Cicoli, Fernando Quevedo, Roberto Valandro. 2015-12-14. De Sitter from T-branes. https://doi.org/10.1007/jhep03(2016)141

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