Anti-D3 branes and moduli in non-linear supergravity
arXiv:1707.07059 · doi:10.1007/JHEP10(2017)185
Abstract
Anti-D3 branes and non-perturbative effects in flux compactifications spontaneously break supersymmetry and stabilise moduli in a metastable de Sitter vacua. The low energy 4D effective field theory description for such models would be a supergravity theory with non-linearly realised supersymmetry. Guided by string theory modular symmetry, we compute this non-linear supergravity theory, including dependence on all bulk moduli. Using either a constrained chiral superfield or a constrained vector field, the uplifting contribution to the scalar potential from the anti-D3 brane can be parameterised either as an F-term or Fayet-Iliopoulos D-term. Using again the modular symmetry, we show that 4D non-linear supergravities that descend from string theory have an enhanced protection from quantum corrections by non-renormalisation theorems. The superpotential giving rise to metastable de Sitter vacua is robust against perturbative string-loop and corrections.
33 pages
References in corpus (10)
- From Linear SUSY to Constrained Superfields
- Cosmology with Nilpotent Superfields
- and dS
- Emergence of Spontaneously Broken Supersymmetry on an Anti-D3-Brane in KKLT dS Vacua
- The Universal Kaehler Modulus in Warped Compactifications
- The Goldstino Brane, the Constrained Superfields and Matter in N=1 Supergravity
- Inflation, de Sitter Landscape and Super-Higgs effect
- Constrained superfields from an anti-D3-brane in KKLT
- Soft branes in supersymmetry-breaking backgrounds
- Mass Formulae for Broken Supersymmetry in Curved Space-Time