Can Quantum-Corrected BTZ Black Hole Anti-Evaporate?

TL;DR

This paper investigates the quantum evolution of BTZ black holes, showing they can either evaporate or anti-evaporate due to quantum corrections, with potential for black hole proliferation.

Contribution

It applies a 2D dilaton-Maxwell gravity model with quantum corrections to analyze BTZ black hole dynamics, revealing new evaporation behaviors.

Findings

Quantum-corrected BTZ black holes may evaporate or anti-evaporate.

Higher modes suggest possible proliferation of BTZ black holes.

Quantum effects influence black hole stability and evolution.

Abstract

Kaluza-Klein reduction of 3D gravity with minimal scalars leads to 2D dilaton-Maxwell gravity with dilaton coupled scalars. Evaluating the one-loop effective action for dilaton coupled scalars in large $N$ and s-wave approximation we apply it to study quantum evolution of BTZ black hole. It is shown that quantum-corrected BTZ BH may evaporate or else anti-evaporate similarly to 4D Nariai BH as is observed by Bousso and Hawking. Instable higher modes in the spectrum indicate also the possibility of proliferation of BTZ BH.