dS Supergravity from 10d
Abstract
We consider flux compactification of type II string theory with local sources on SU(3)-structure manifolds. By adding pseudo-calibrated anti--branes wrapped on supersymmetric cycles we generalize all existing models so that the effective supergravity now includes a nilpotent multiplet. We present a new dictionary between string theory models and K{\"a}hler potential and superpotential for these dS supergravities with a nilpotent multiplet and non-linearly realized local supersymmetry. In addition to KKLT and LVS with uplifting -branes, we have now new models with uplifting , , , -branes. The new uplifting contribution to the supergravity potential due to Volkov-Akulov supersymmetry is universal. As one application of our general result, we study classical flux compactifications of type IIA supergravity and find that a previously discovered universal tachyon is now absent.
Cite
@article{arxiv.1808.09427,
title = {dS Supergravity from 10d},
author = {Renata Kallosh and Timm Wrase},
journal= {arXiv preprint arXiv:1808.09427},
year = {2019}
}
Comments
18 pages, 3 figures; v2: minor changes, references added; v3: typos in section 4.1 corrected