Phase Structure of Quantum Improved Schwarzschild-(Anti)de Sitter Black Holes
Abstract
We study the phase structure of quantum improved Schwarzschild-(A)dS black holes in asymptotically safe gravity. Our results confirm some of the well-known properties of quantum black holes. For example, the quantum effect provides a repulsive force in the core region near singularity which stabilizes the thermodynamically unstable small black holes, and also creates a zero temperature state with finite size. We suggest that this could be a candidate for dark matter. We find a new second order phase transition between small and large black holes for quantum improved Schwarzschild-Anti de Sitter black holes. We also discuss the black holes with different spatial topologies and find a notable duality.
Keywords
Cite
@article{arxiv.2303.04304,
title = {Phase Structure of Quantum Improved Schwarzschild-(Anti)de Sitter Black Holes},
author = {Chiang-Mei Chen and Yi Chen and Akihiro Ishibashi and Nobuyoshi Ohta},
journal= {arXiv preprint arXiv:2303.04304},
year = {2023}
}
Comments
version to appear in Classical and Quantum Gravity