Hairy Black Holes, Horizon Mass and Solitons

TL;DR

This paper explores the properties of hairy black holes, proposing they behave like bound states of black holes and solitons, explaining their instability and predicting their horizon characteristics with support from numerical data.

Contribution

It introduces a model viewing hairy black holes as bound states, providing a physical explanation for their instability and qualitative predictions of their horizon properties.

Findings

Hairy black holes can be modeled as bound states of black holes and solitons.

Numerical calculations support the model's predictions.

The physical arguments are applicable to more complex scenarios.

Abstract

Properties of the horizon mass of hairy black holes are discussed with emphasis on certain subtle and initially unexpected features. A key property suggests that hairy black holes may be regarded as `bound states' of ordinary black holes without hair and colored solitons. This model is then used to predict the qualitative behavior of the horizon properties of hairy black holes, to provide a physical `explanation' of their instability and to put qualitative constraints on the end point configurations that result from this instability. The available numerical calculations support these predictions. Furthermore, the physical arguments are robust and should be applicable also in more complicated situations where detailed numerical work is yet to be carried out.