Primordial Black Holes Place the Universe in Stasis
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2022
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866911201944928256 |
|---|---|
| author | Dienes, Keith R. Heurtier, Lucien Huang, Fei Kim, Doojin Tait, Tim M. P. Thomas, Brooks |
| author_facet | Dienes, Keith R. Heurtier, Lucien Huang, Fei Kim, Doojin Tait, Tim M. P. Thomas, Brooks |
| contents | A variety of scenarios for early-universe cosmology give rise to a population of primordial black holes (PBHs) with a broad spectrum of masses. The evaporation of PBHs in such scenarios has the potential to place the universe into an extended period of "stasis" during which the abundances of matter and radiation remain absolutely constant despite cosmological expansion. This surprising phenomenon can give rise to new possibilities for early-universe dynamics and lead to distinctive signatures of the evaporation of such PBHs. In this paper, we discuss how this stasis epoch arises and explore a number of its phenomenological consequences, including implications for inflationary observables, the stochastic gravitational-wave background, baryogenesis, and the production of dark matter and dark radiation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_01369 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Primordial Black Holes Place the Universe in Stasis Dienes, Keith R. Heurtier, Lucien Huang, Fei Kim, Doojin Tait, Tim M. P. Thomas, Brooks Cosmology and Nongalactic Astrophysics A variety of scenarios for early-universe cosmology give rise to a population of primordial black holes (PBHs) with a broad spectrum of masses. The evaporation of PBHs in such scenarios has the potential to place the universe into an extended period of "stasis" during which the abundances of matter and radiation remain absolutely constant despite cosmological expansion. This surprising phenomenon can give rise to new possibilities for early-universe dynamics and lead to distinctive signatures of the evaporation of such PBHs. In this paper, we discuss how this stasis epoch arises and explore a number of its phenomenological consequences, including implications for inflationary observables, the stochastic gravitational-wave background, baryogenesis, and the production of dark matter and dark radiation. |
| title | Primordial Black Holes Place the Universe in Stasis |
| topic | Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2212.01369 |