Published June 10, 2017
| Published + Submitted
Journal Article
Open
Tracing primordial black holes in nonsingular bouncing cosmology
- Creators
- Chen, Jie-Wen
-
Liu, Junyu
- Xu, Hao-Lan
- Cai, Yi-Fu
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.
Additional Information
© 2017 The Authors. Under a Creative Commons license, CC BY 4.0. Published by Elsevier B.V. Open Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics. Received 18 September 2016, Revised 18 March 2017, Accepted 18 March 2017, Available online 22 March 2017. We are grateful to R. Brandenberger, J. Martin, P. Peter, T. Qiu, J. Quintin, D.-G. Wang, Z. Wang, X.-Y. Yang and Y. Zhang for valuable comments. We especially thank the anonymous Referee for very detailed and constructive suggestions. YFC and JWC are supported in part by the Chinese National Youth Thousand Talents Program (Grant No. KJ2030220006), by the USTC start-up funding (Grant No. KY2030000049) and by the National Natural Science Foundation of China (Grant Nos. 11421303, 11653002). HLX is supported in part by the Fund for Fostering Talents in Basic Science of the National Natural Science Foundation of China (Grant No. J1310021) and in part by the Yan Jici Talent Students Program. HLX also thanks J. Martin and P. Peter for their warmest hospitality during visiting the Institut d'Astrophysique de Paris when this work was finalized. Part of numerical computations are operated on the computer cluster LINDA in the particle cosmology group at USTC.Attached Files
Published - 1-s2.0-S0370269317302241-main.pdf
Submitted - 1609.02571
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1-s2.0-S0370269317302241-main.pdf
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Additional details
- Eprint ID
- 78468
- Resolver ID
- CaltechAUTHORS:20170622-132059764
- KJ2030220006
- Chinese National Youth Thousand Talents Program
- KY2030000049
- University of Science and Technology of China
- 11421303
- National Natural Science Foundation of China
- 11653002
- National Natural Science Foundation of China
- Created
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2017-06-22Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field