Superradiance or total reflection?
General Relativity and Quantum Cosmology
2012-12-21 v1
Abstract
Numerical evolution of massless scalar fields on Kerr background is studied. The initial data specifications are chosen to have compact support separated from the ergoregion and to yield nearly monochromatic incident wave packets. The initial data is also tuned to maximize the effect of superradiance. Evidences are shown indicating that instead of the anticipated energy extraction from black hole the incident radiation fail to reach the ergoregion rather it suffers a nearly perfect reflection.
Cite
@article{arxiv.1212.4847,
title = {Superradiance or total reflection?},
author = {András László and István Rácz},
journal= {arXiv preprint arXiv:1212.4847},
year = {2012}
}
Comments
8 pages, 6 figures, contribution to the proceedings of the conference on Relativity and Gravitation: 100 Years after Einstein in Prague