De Sitter from T-branes

Michele Cicoli; Fernando Quevedo; Roberto Valandro

doi:10.1007/JHEP03(2016)141

De Sitter from T-branes

Michele Cicoli, Fernando Quevedo, Roberto Valandro

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English (US)
Article number	141
Journal	Journal of High Energy Physics
Volume	2016
Issue number	3
DOIs	https://doi.org/10.1007/JHEP03(2016)141
State	Published - Mar 1 2016

Keywords

D-branes
F-Theory
Flux compactifications
Superstring Vacua

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1007/JHEP03(2016)141

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title = "De Sitter from T-branes",

abstract = "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.",

keywords = "D-branes, F-Theory, Flux compactifications, Superstring Vacua",

author = "Michele Cicoli and Fernando Quevedo and Roberto Valandro",

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doi = "10.1007/JHEP03(2016)141",

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AU - Cicoli, Michele

AU - Quevedo, Fernando

AU - Valandro, Roberto

PY - 2016/3/1

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N2 - 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.

AB - 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.

KW - D-branes

KW - F-Theory

KW - Flux compactifications

KW - Superstring Vacua

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De Sitter from T-branes

Abstract

Keywords

ASJC Scopus subject areas

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