deSitter vacua from uplifting D-terms in effective supergravities from realistic strings

TL;DR

This paper explores using anomalous U(1) D-terms for uplifting AdS vacua to de Sitter or Minkowski vacua in string-derived supergravity models, providing a gauge-invariant framework and concrete examples.

Contribution

It introduces a gauge-invariant formulation of D-term uplifting in string effective supergravities, avoiding previous inconsistencies and demonstrating successful examples in type IIB models.

Findings

D-term uplifting can be achieved with an un-cancellable anomalous U(1) D-term.

The formulation avoids previous theoretical inconsistencies.

Concrete successful examples in type IIB string models are provided.

Abstract

We study the possibility of using the D-term associated to an anomalous U(1) for the uplifting of AdS vacua (to dS or Minkowski vacua) in effective supergravities arising from string theories, particularly in the type IIB context put forward by Kachru, Kallosh, Linde and Trivedi (KKLT). We find a gauge invariant formulation of such a scenario (avoiding previous inconsistencies), where the anomalous D-term cannot be cancelled, thus triggering the uplifting of the vacua. Then, we examine the general conditions for this to happen. Finally, we illustrate the results by presenting different successful examples in the type IIB context.