Quasinormal modes for coherent quantum black holes

TL;DR

This paper explores the quasinormal modes of coherent quantum black holes, revealing potential deviations from classical predictions that could be observed in gravitational wave ringdowns, influenced by quantum corrections to black hole geometry.

Contribution

It introduces a quantum black hole model with integrable singularities and analyzes its quasinormal mode spectrum for various fields, highlighting observable deviations from classical general relativity.

Findings

Deviations in quasinormal modes suggest quantum effects.

Ultraviolet regulator influences observable signals.

Potential for gravitational wave detection of quantum corrections.

Abstract

Coherent quantum black holes are quantum geometries obtained by means of a mean-field-like approach to the gravitational interaction. This procedure attenuates the classical spacetime singularities of general relativity by replacing them with integrable singularities in the quantum-corrected geometry. After discussing some relevant observables for a novel geometry for spherically symmetric black holes, we investigate the quasinormal modes spectrum of scalar, electromagnetic, and gravitational fields for the proposed model. The results indicate potential deviations from general relativity, the magnitude of which is gauged by the value of the ultraviolet regulator of the model (physically identifiable as a matter core). Observations of the ringdown phase in black hole mergers could help detect such deviations.