The violation of the No-Hair Conjecture in four-dimensional ungauged Supergravity

Understand

By choosing a particular, String Theory inspired, Special K\"ahler manifold, we are able to find a N=2 four-dimensional ungauged Supergravity model that contains supersymmetric black hole solutions that violate the folk uniqueness theorems that are expected to hold in ungauged Supergravity.

• The black hole solutions are regular in the sense that they have a positive mass and a unique physical singularity hidden by an event horizon.
• In contradistinction to most examples already known in the literature, we find our solutions in a theory without scalar potential, gaugings or higher order curvature terms.