Echoes from Classical Black Holes
High Energy Physics - Theory
2022-06-08 v1 General Relativity and Quantum Cosmology
Abstract
We study echoes of free massless scalar from dyonic black holes in Einstein-Maxwell gravity extended with the quasi-topological electromagnetic term. These asymptotically-flat black holes all satisfy the dominant energy condition. We find that for suitable parameters, the effective potential can have double peaks and consequently echoes of quasinormal modes arise. In general the echo frequency associated with the initial wave packet released inside the two peaks is about twice the frequency of the one released outside.
Cite
@article{arxiv.2112.14780,
title = {Echoes from Classical Black Holes},
author = {Hyat Huang and Min-Yan Ou and Meng-Yun Lai and H. Lu},
journal= {arXiv preprint arXiv:2112.14780},
year = {2022}
}
Comments
Latex, 20 pages, 29 plots grouped into 11 figures