Gravitational Bose-Einstein condensation in the kinetic regime
Cosmology and Nongalactic Astrophysics
2018-10-17 v2 Astrophysics of Galaxies
Statistical Mechanics
High Energy Physics - Phenomenology
Abstract
We study Bose-Einstein condensation and formation of Bose stars in the virialized dark matter halos/miniclusters by universal gravitational interactions. We prove that this phenomenon does occur and it is described by kinetic equation. We give expression for the condensation time. Our results suggest that Bose stars may form kinetically in the mainstream dark matter models such as invisible QCD axions and Fuzzy Dark Matter.
Keywords
Cite
@article{arxiv.1804.05857,
title = {Gravitational Bose-Einstein condensation in the kinetic regime},
author = {D. G. Levkov and A. G. Panin and I. I. Tkachev},
journal= {arXiv preprint arXiv:1804.05857},
year = {2018}
}
Comments
11 pages, 4 figures; derivation of kinetic equation and details of numerical method are presented in the Supplemental material; to appear in Phys.Rev.Lett