2016/09/30 by Jiewen Chen, Jie-Wen Chen, Junyu Liu +3
Physics and Astronomy · #Astrophysics #Binary black hole #Black Holes and Theoretical Physics #Cosmology #Cosmology and Gravitation Theories #Gravitational wave #Invertible matrix #Physics #Primordial black hole #Quantum Electrodynamics and Casimir Effect #Quantum mechanics #Tracing #astro-ph.CO #gr-qc #hep-th
paper · pdf · doi:10.1016/j.physletb.2017.03.036
published as Physics Letters B 769 (2017) 561 · 19 pages, 4 figures, comments are welcome
openalex publication_date 2017/03/22 · arxiv created 2017/05/17 · arxiv updated 2017/05/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We in this paper investigate the formation and evolution of primordial black holes (PBHs) in nonsingular bouncing cosmologies. We discuss the formation of PBH in the contracting phase and calculate the PBH abundance as a function of the sound speed and Hubble parameter. Afterwards, by taking into account the subsequent PBH evolution during the bouncing phase, we derive the density of PBHs and their Hawking radiation. Our analysis shows that nonsingular bounce models can be constrained from the backreaction of PBHs.