de Sitter String Vacua from Perturbative Kahler Corrections and Consistent D-terms

TL;DR

This paper introduces a novel method for constructing de Sitter vacua in type IIB string theory by combining moduli stabilization with D-term uplifting, ensuring supergravity consistency and achieving metastable dS minima.

Contribution

It demonstrates a new approach to achieving de Sitter vacua using perturbative Kahler corrections and consistent D-terms in flux compactifications.

Findings

Moduli stabilization achieved via perturbative Kahler potential corrections.

D-term uplifting from magnetized D7-branes yields metastable dS vacua.

Method maintains supergravity consistency in the construction.

Abstract

We present a new way to construct de Sitter vacua in type IIB flux compactifications, in which moduli stabilization and D-term uplifting can be combined in a manner consistent with the supergravity constraints. Here, the closed string fluxes fix the dilaton and the complex structure moduli while perturbative quantum corrections to the Kahler potential stabilize the volume Kahler modulus in an AdS_4-vacuum. Then, the presence of magnetized D7-branes in this setup provide supersymmetric D-terms in a fully consistent way which uplift the AdS_4-vacuum to a metastable dS-minimum.