Supersymmetric 4D Rotating Black Holes from 5D Black Rings

TL;DR

This paper constructs explicit four-dimensional supersymmetric rotating black hole solutions by reducing five-dimensional black rings wrapped on Taub-NUT space, revealing regular horizons and multi-black hole configurations.

Contribution

It introduces a novel method to generate four-dimensional rotating black holes from five-dimensional black rings via Kaluza-Klein reduction, including multi-black hole solutions with regular horizons.

Findings

Explicit 4D supersymmetric rotating black hole solutions

Regular horizons hiding nut singularities

Multi-black hole configurations in asymptotically flat space

Abstract

We present supersymmetric solutions describing black holes with non-vanishing angular momentum in four dimensional asymptotically flat space. The solutions are obtained by Kaluza-Klein reduction of five-dimensional supersymmetric black rings wrapped on the fiber of a Taub-NUT space. We show that in the four-dimensional description the singularity of the nut can be hidden behind a regular black hole event horizon and thereby obtain an explicit example of a non-static multi-black hole solution in asymptotically flat four dimensions.