Quasinormal modes of loop quantum black holes near the Planck scale

TL;DR

This paper compares quasinormal modes of different loop quantum gravity-inspired black hole metrics near the Planck scale, analyzing perturbations and ringdown behaviors to understand quantum effects on black hole stability.

Contribution

It provides a comparative analysis of axial gravitational quasinormal modes across four loop quantum gravity-inspired black hole models, including time evolution and eikonal limit predictions.

Findings

Differences in quasinormal mode spectra among the models.

Validation of eikonal approximation against numerical results.

Insights into quantum gravity effects on black hole ringdowns.

Abstract

We compare four loop quantum gravity inspired black hole metrics near the Planck scale. Spin 0, 1/2, 1, and 2 field perturbations on these backgrounds are studied. The axial gravitational quasinormal modes are calculated and compared. The time evolution of the ringdown is examined. We also calculate the quasinormal modes in the eikonal limit and compare with the predictions from circular null geodesics.