Kaluza-Klein black holes with squashed horizons and $d=4$ superposed monopoles

TL;DR

This paper introduces new five-dimensional Einstein-Yang-Mills black hole solutions with squashed horizons, which are asymptotically locally flat and feature both nonabelian and U(1) magnetic charges, offering novel insights into higher-dimensional gravity.

Contribution

The paper provides the first explicit solutions of 5D Einstein-Yang-Mills black holes with squashed horizons and mixed magnetic charges, expanding the understanding of higher-dimensional black hole configurations.

Findings

Solutions are asymptotically locally flat

Horizons are squashed and have a fiber bundle topology

Black holes carry both nonabelian and U(1) magnetic charges

Abstract

We present new solutions of the $d=5$ Einstein-Yang-Mills theory describing black holes with squashed horizons. These configurations are asymptotically locally flat and have a boundary topology of a fibre bundle $R\times S^1 \hookrightarrow S^{2}$. In a $d=4$ picture, they describe black hole solutions with both nonabelian and U(1) magnetic charges.