Quantum decay of scalar and vector boson stars and oscillons into gravitons
High Energy Physics - Phenomenology
2023-06-23 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We point out that a soliton such as an oscillon or boson star inevitably decays into gravitons through gravitational interactions. These decay processes exist even if there are no apparent self-interactions of the constituent field, scalar or vector, since they are induced by gravitational interactions. Hence, our results provide a strict upper limit on the lifetime of oscillons and boson stars including the dilute axion star. We also calculate the spectrum of the graviton background from decay of solitons.
Cite
@article{arxiv.2306.12961,
title = {Quantum decay of scalar and vector boson stars and oscillons into gravitons},
author = {Kazunori Nakayama and Fuminobu Takahashi and Masaki Yamada},
journal= {arXiv preprint arXiv:2306.12961},
year = {2023}
}
Comments
32 pages, 2 figures