Inflationary and gravitational wave signatures of small primordial black holes as dark matter
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00637378" target="_blank" >RIV/68378271:_____/25:00637378 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/4hrv-zfch" target="_blank" >https://doi.org/10.1103/4hrv-zfch</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/4hrv-zfch" target="_blank" >10.1103/4hrv-zfch</a>
Alternative languages
Result language
angličtina
Original language name
Inflationary and gravitational wave signatures of small primordial black holes as dark matter
Original language description
Mounting evidence suggests that the semiclassical description of a black hole breaks down at the latest after losing an O(1) fraction of its mass. As a result, effects such as memory burden can slow down evaporation so that small primordial black holes (PBHs), in particular those in the mass range 106 g to 109 g, become viable dark matter candidates. In this paper, we investigate the production of PBHs from a prototype model of polynomial inflation with a nonminimal coupling to gravity. We show that a sufficiently small PBH mass alleviates any tension with cosmic microwave background observations. Moreover, we develop efficient numerical procedures to identify model parameters and evolve Mukhanov-Sasaki modes to place bounds on the scalar-induced stochastic gravitational wave (GW) background. While we identify some prospects for observation with future GW detectors, our results highlight the need to develop new experiments for high-frequency GW detection in the ∼kHz to ∼MHz range. Finally, we demonstrate that previously used Ansätze for modeling the power spectrum only yield a reliable approximation for the GW signal if some input from inflation is used.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
111
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
22
Pages from-to
123033
UT code for WoS article
001519372100001
EID of the result in the Scopus database
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