Affine quantization of Black Holes: thermodynamics, singularity removal and displaced horizons

TL;DR

This paper explores how affine coherent state quantization modifies black hole thermodynamics, removes singularities, and alters horizon structures, providing a semiclassical framework consistent with classical thermodynamics.

Contribution

It introduces a semiclassical effective action for affine quantized black holes, demonstrating singularity removal and horizon modifications while maintaining thermodynamic consistency.

Findings

Black hole singularities are removed by quantum effects.

Thermodynamics of affine black holes aligns closely with classical counterparts.

Quantum effects lead to modified horizon structures.

Abstract

In this work we investigate the thermodynamical properties and modified dynamics of black hole solutions in the semiclassical regime of affine coherent state quantization. Using the weak correspondence principle we build a semiclassical effective action that we use to study thermodynamics in the canonical ensemble and to compare classical analytical solutions with the corresponding semiclassical ones. We determine a strong compatibility of these affine black holes with the thermodynamical properties of the classical counterparts, with only minor restrictions on the free parameters of the models. Furthermore we obtain that black hole singularities are removed by quantum effects, resulting also in a modified extension of the horizon, in agreement with the sign of entropy corrections.