Event Horizon Wrinklification

TL;DR

This paper explores the theoretical possibility that black holes can spontaneously develop complex structures, called 'wrinklification', which could lead to higher entropy states than traditional models, raising questions about black hole thermodynamics.

Contribution

It demonstrates that AdS black holes with greater entropy than Schwarzschild black holes of the same mass can exist, supporting the idea of black hole wrinklification.

Findings

AdS black holes with higher entropy than Schwarzschild counterparts exist

Black hole wrinklification may be a thermodynamically plausible process

Supports the theoretical feasibility of complex black hole structures

Abstract

The possible existence of stable black holes with entropies larger than the corresponding Schwarzschild black hole has been discussed extensively. The recently proposed "rough" black holes provide a concrete example of this. The fear is that, in accordance with the Second Law of thermodynamics, the familiar smooth-skinned black holes might spontaneously "wrinklify" into such an object. We show that this fear is to some extent justified, in the sense that AdS black holes with more entropy than the AdS-Schwarzschild black hole of the same mass do exist.