American Physical Society (APS)
Physical Review D
,  volume 111 ,  issue 3 ,  publication number 035020

Gravitational wave production during reheating: From the inflaton to primordial black holes

Mathieu Gross 1, 2
, 
Y. Mambrini 1, 2
, 
Essodjolo Kpatcha 3
, 
María Olalla Olea Romacho 4
, 
Rishav Roshan 5
1
 
2
 
IJCLab
3
 
4
 
5
 
Publication type: Journal Article
Publication date: 2025-02-21
American Physical Society (APS)
scimago Q1
wos Q1
SJR: 1.458
CiteScore: 9.0
Impact factor: 5.3
ISSN: 24700010, 24700029, 05562821, 10894918, 15507998, 15502368
Abstract

We calculate the gravitational waves (GWs) produced by primordial black holes (PBHs) in the presence of the inflaton condensate in the early Universe. Combining the GW production from the evaporation process, the gravitational scattering of the inflaton itself, and the density fluctuations due to the inhomogeneous distribution of PBHs, we propose for the first time a complete coherent analysis of the spectrum, revealing three peaks, one for each source. Three frequency ranges (∼kHz, GHz, and PHz, respectively) are expected, each giving rise to a similar GW peak amplitude ΩGW. We also compare our predictions with current and future GWs detection experiments.

Published by the American Physical Society 2025
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Gross M. et al. Gravitational wave production during reheating: From the inflaton to primordial black holes // Physical Review D. 2025. Vol. 111. No. 3. 035020
GOST all authors (up to 50) Copy
Gross M., Mambrini Y., Kpatcha E., Olea Romacho M. O., Roshan R. Gravitational wave production during reheating: From the inflaton to primordial black holes // Physical Review D. 2025. Vol. 111. No. 3. 035020
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RIS Copy
TY - JOUR
DO - 10.1103/physrevd.111.035020
UR - https://link.aps.org/doi/10.1103/PhysRevD.111.035020
TI - Gravitational wave production during reheating: From the inflaton to primordial black holes
T2 - Physical Review D
AU - Gross, Mathieu
AU - Mambrini, Y.
AU - Kpatcha, Essodjolo
AU - Olea Romacho, María Olalla
AU - Roshan, Rishav
PY - 2025
DA - 2025/02/21
PB - American Physical Society (APS)
IS - 3
VL - 111
SN - 2470-0010
SN - 2470-0029
SN - 0556-2821
SN - 1089-4918
SN - 1550-7998
SN - 1550-2368
ER -
BibTex
Cite this
BibTex (up to 50 authors) Copy
@article{2025_Gross,
author = {Mathieu Gross and Y. Mambrini and Essodjolo Kpatcha and María Olalla Olea Romacho and Rishav Roshan},
title = {Gravitational wave production during reheating: From the inflaton to primordial black holes},
journal = {Physical Review D},
year = {2025},
volume = {111},
publisher = {American Physical Society (APS)},
month = {feb},
url = {https://link.aps.org/doi/10.1103/PhysRevD.111.035020},
number = {3},
pages = {035020},
doi = {10.1103/physrevd.111.035020}
}