D=4, N=2 Supergravity with Abelian electric and magnetic charges

TL;DR

This paper explores the relationship between different formulations of N=2 supergravity with electric and magnetic charges, highlighting a symplectic covariant approach and its connection to IIB flux compactifications and tadpole cancellation.

Contribution

It demonstrates that a symplectic covariant formulation of N=2 supergravity with tensor multiplets is possible and links flux compactifications to non-perturbative phases of standard supergravity.

Findings

Symplectic covariant formulation achieved with tensor multiplets.

Equivalence between IIB flux compactification and a non-perturbative phase of N=2 supergravity.

Tadpole cancellation condition arises from supersymmetry constraints.

Abstract

We discuss the relation between standard N=2 supergravity with translational gauging and N=2 supergravities with scalar-tensor multiplets with massive tensors and Abelian electric charges. We point out that a symplectic covariant formulation of N=2 supergravity can be achieved just in the presence of tensor multiplets. As a consequence one can see that the formulation of the N=2 theory as it comes from IIB flux compactification, which is included in these models, is equivalent to a non perturbative phase of standard N=2 supergravity. It is also shown that the IIB tadpole cancellation condition is imposed by supersymmetry in four dimensions.