De Sitter from T-branes

Michele Cicoli, Fernando Quevedo, Roberto Valandro

Research output: Contribution to journalArticlepeer-review


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 languageEnglish (US)
Article number141
JournalJournal of High Energy Physics
Issue number3
StatePublished - Mar 1 2016


  • D-branes
  • F-Theory
  • Flux compactifications
  • Superstring Vacua

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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