TL;DR
The paper introduces O'KKLT, a combined supergravity model that stabilizes all moduli with a de Sitter vacuum and allows for a light gravitino, addressing stability during cosmological evolution.
Contribution
It presents a novel integration of the quantum corrected O'Raifeartaigh model with KKLT, achieving stable de Sitter vacua with light gravitinos.
Findings
O'KKLT achieves a de Sitter minimum with stabilized moduli.
The model allows for a light gravitino within a stable vacuum.
It provides a framework for cosmological stability during evolution.
Abstract
We propose to combine the quantum corrected O'Raifeartaigh model, which has a dS minimum near the origin of the moduli space, with the KKLT model with an AdS minimum. The combined effective N=1 supergravity model, which we call O'KKLT, has a dS minimum with all moduli stabilized. Gravitino in the O'KKLT model tends to be light in the regime of validity of our approximations. We show how one can construct models with a light gravitino and a high barrier protecting vacuum stability during the cosmological evolution.
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