Perturbative stability and absorption cross section in string corrected black holes

TL;DR

This paper investigates the stability and absorption properties of a string-corrected black hole solution, providing insights into its behavior under gravitational perturbations and wave interactions.

Contribution

It introduces a specific string-corrected black hole model and analyzes its stability and wave absorption, which are novel in the context of string theory corrections.

Findings

Black hole is stable under tensor gravitational perturbations.

Calculated low-frequency gravitational wave absorption cross section.

Provides new insights into string theory effects on black hole physics.

Abstract

We consider a d-dimensional spherically symmetric dilatonic R^2 string corrected black hole solution. We study its stability under tensor type gravitational perturbations and compute the absorption cross section for low frequency gravitational waves.