Boson Star Superradiance
General Relativity and Quantum Cosmology
2023-06-30 v2 High Energy Astrophysical Phenomena
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
Recently, it has been realized that in some systems internal space rotation can induce energy amplification for scattering waves, similar to rotation in real space. Particularly, it has been shown that energy extraction is possible for a Q-ball, a stationary non-topological soliton that is coherently rotating in its field space. In this paper, we generalize the analysis to the case of boson stars, and show that the same energy extraction mechanism still works for boson stars.
Keywords
Cite
@article{arxiv.2306.01868,
title = {Boson Star Superradiance},
author = {He-Yu Gao and Paul M. Saffin and Yi-Jie Wang and Qi-Xin Xie and Shuang-Yong Zhou},
journal= {arXiv preprint arXiv:2306.01868},
year = {2023}
}
Comments
10 pages, 6 figures; v2: refs added and clarified