Details
| Original language | English |
|---|---|
| Article number | 4 |
| Number of pages | 22 |
| Journal | AAPPS Bulletin |
| Volume | 34 |
| Issue number | 1 |
| Publication status | Published - 6 Jan 2024 |
Abstract
Gravitational waves induced by large primordial curvature fluctuations may result in a sizable stochastic gravitational wave background. Interestingly, curvature fluctuations are gradually generated by initial isocurvature fluctuations, which in turn induce gravitational waves. Initial isocurvature fluctuations commonly appear in multi-field models of inflation as well as in the formation of scattered compact objects in the very early universe, such as primordial black holes and solitons like oscillons and cosmic strings. Here, we provide a review on isocurvature induced gravitational waves and its applications to dark matter and the primordial black hole dominated early universe.
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In: AAPPS Bulletin, Vol. 34, No. 1, 4, 06.01.2024.
Research output: Contribution to journal › Review article › Research › peer review
}
TY - JOUR
T1 - Cosmological gravitational waves from isocurvature fluctuations
AU - Domènech, Guillem
N1 - Funding Information: Open Access funding enabled and organized by Projekt DEAL. This research is supported by the DFG under the Emmy-Noether program grant no. DO 2574/1-1, project number 496592360.
PY - 2024/1/6
Y1 - 2024/1/6
N2 - Gravitational waves induced by large primordial curvature fluctuations may result in a sizable stochastic gravitational wave background. Interestingly, curvature fluctuations are gradually generated by initial isocurvature fluctuations, which in turn induce gravitational waves. Initial isocurvature fluctuations commonly appear in multi-field models of inflation as well as in the formation of scattered compact objects in the very early universe, such as primordial black holes and solitons like oscillons and cosmic strings. Here, we provide a review on isocurvature induced gravitational waves and its applications to dark matter and the primordial black hole dominated early universe.
AB - Gravitational waves induced by large primordial curvature fluctuations may result in a sizable stochastic gravitational wave background. Interestingly, curvature fluctuations are gradually generated by initial isocurvature fluctuations, which in turn induce gravitational waves. Initial isocurvature fluctuations commonly appear in multi-field models of inflation as well as in the formation of scattered compact objects in the very early universe, such as primordial black holes and solitons like oscillons and cosmic strings. Here, we provide a review on isocurvature induced gravitational waves and its applications to dark matter and the primordial black hole dominated early universe.
UR - http://www.scopus.com/inward/record.url?scp=85181473854&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2311.02065
DO - 10.48550/arXiv.2311.02065
M3 - Review article
AN - SCOPUS:85181473854
VL - 34
JO - AAPPS Bulletin
JF - AAPPS Bulletin
SN - 0218-2203
IS - 1
M1 - 4
ER -