Chemical-Potential-Assisted Particle Production in FRW Spacetimes
High Energy Physics - Theory
2021-07-15 v2 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
We analyze gravitational particle production assisted by chemical potential. By utilizing the uniformly smoothed Stokes-line method and Borel summation, we gain insight into the fine-grained history of enhanced particle production. Analytic/semi-analytic formulae describing the production amount, time and width are obtained for both spin-1 and spin-1/2 particles in various FRW spacetimes. Our work also serves as a concrete demonstration of the uniformly smoothed Stokes-line method applied to cosmology.
Keywords
Cite
@article{arxiv.2104.08772,
title = {Chemical-Potential-Assisted Particle Production in FRW Spacetimes},
author = {Chon Man Sou and Xi Tong and Yi Wang},
journal= {arXiv preprint arXiv:2104.08772},
year = {2021}
}
Comments
48 pages, 27 figures; v2: 49 pages, 27 figures, with minor changes