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.
Titolo: | De Sitter from T-branes | |
Autori: | ||
Data di pubblicazione: | 2016 | |
Rivista: | ||
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. | |
Handle: | http://hdl.handle.net/11368/2868346 | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/JHEP03(2016)141 | |
URL: | http://link.springer.com/article/10.1007%2FJHEP03%282016%29141 | |
Appare nelle tipologie: | 1.1 Articolo in Rivista |
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