De Sitter from T-branes
High Energy Physics - Theory
2016-04-20 v1
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.
Cite
@article{arxiv.1512.04558,
title = {De Sitter from T-branes},
author = {Michele Cicoli and Fernando Quevedo and Roberto Valandro},
journal= {arXiv preprint arXiv:1512.04558},
year = {2016}
}
Comments
23 pages, 2 figures