| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5495084 | Physics Letters B | 2017 | 8 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Jie-Wen Chen, Junyu Liu, Hao-Lan Xu, Yi-Fu Cai,