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Anatomy of single-field inflationary models for primordial black holes

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Anatomy of single-field inflationary models for primordial black holes. / Karam, Alexandros; Koivunen, Niko; Tomberg, Eemeli et al.
In: Journal of Cosmology and Astroparticle Physics, Vol. 2023, No. 3, 013, 06.03.2023.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Karam, A, Koivunen, N, Tomberg, E, Vaskonen, V & Veermäe, H 2023, 'Anatomy of single-field inflationary models for primordial black holes', Journal of Cosmology and Astroparticle Physics, vol. 2023, no. 3, 013. https://doi.org/10.1088/1475-7516/2023/03/013

APA

Karam, A., Koivunen, N., Tomberg, E., Vaskonen, V., & Veermäe, H. (2023). Anatomy of single-field inflationary models for primordial black holes. Journal of Cosmology and Astroparticle Physics, 2023(3), Article 013. https://doi.org/10.1088/1475-7516/2023/03/013

Vancouver

Karam A, Koivunen N, Tomberg E, Vaskonen V, Veermäe H. Anatomy of single-field inflationary models for primordial black holes. Journal of Cosmology and Astroparticle Physics. 2023 Mar 6;2023(3):013. doi: 10.1088/1475-7516/2023/03/013

Author

Karam, Alexandros ; Koivunen, Niko ; Tomberg, Eemeli et al. / Anatomy of single-field inflationary models for primordial black holes. In: Journal of Cosmology and Astroparticle Physics. 2023 ; Vol. 2023, No. 3.

Bibtex

@article{0edc0ba6b74441c988bdcd471ddf63bc,
title = "Anatomy of single-field inflationary models for primordial black holes",
abstract = "We construct an analytically solvable simplified model that captures the essential features for primordial black hole (PBH) production in most models of single-field inflation. The construction makes use of the Wands duality between the constant-roll (or slow-roll) and the preceding ultra-slow-roll phases and can be realized by a simple inflaton potential of two joined parabolas. Within this framework, it is possible to formulate explicit inflationary scenarios consistent with the CMB observations and copious production of PBHs of arbitrary mass. We quantify the variability of the shape of the peak in the curvature power spectrum in different inflationary scenarios and discuss its implications for probing PBHs with scalar-induced gravitational wave backgrounds. We find that the COBE/Firas μ-distortion constraints exclude the production of PBHs heavier than 104 M ⊙ in single-field inflation.",
keywords = "inflation, physics of the early universe, primordial black holes, primordial gravitational waves (theory)",
author = "Alexandros Karam and Niko Koivunen and Eemeli Tomberg and Ville Vaskonen and Hardi Veerm{\"a}e",
year = "2023",
month = mar,
day = "6",
doi = "10.1088/1475-7516/2023/03/013",
language = "English",
volume = "2023",
journal = "Journal of Cosmology and Astroparticle Physics",
issn = "1475-7516",
publisher = "IOP Publishing",
number = "3",

}

RIS

TY - JOUR

T1 - Anatomy of single-field inflationary models for primordial black holes

AU - Karam, Alexandros

AU - Koivunen, Niko

AU - Tomberg, Eemeli

AU - Vaskonen, Ville

AU - Veermäe, Hardi

PY - 2023/3/6

Y1 - 2023/3/6

N2 - We construct an analytically solvable simplified model that captures the essential features for primordial black hole (PBH) production in most models of single-field inflation. The construction makes use of the Wands duality between the constant-roll (or slow-roll) and the preceding ultra-slow-roll phases and can be realized by a simple inflaton potential of two joined parabolas. Within this framework, it is possible to formulate explicit inflationary scenarios consistent with the CMB observations and copious production of PBHs of arbitrary mass. We quantify the variability of the shape of the peak in the curvature power spectrum in different inflationary scenarios and discuss its implications for probing PBHs with scalar-induced gravitational wave backgrounds. We find that the COBE/Firas μ-distortion constraints exclude the production of PBHs heavier than 104 M ⊙ in single-field inflation.

AB - We construct an analytically solvable simplified model that captures the essential features for primordial black hole (PBH) production in most models of single-field inflation. The construction makes use of the Wands duality between the constant-roll (or slow-roll) and the preceding ultra-slow-roll phases and can be realized by a simple inflaton potential of two joined parabolas. Within this framework, it is possible to formulate explicit inflationary scenarios consistent with the CMB observations and copious production of PBHs of arbitrary mass. We quantify the variability of the shape of the peak in the curvature power spectrum in different inflationary scenarios and discuss its implications for probing PBHs with scalar-induced gravitational wave backgrounds. We find that the COBE/Firas μ-distortion constraints exclude the production of PBHs heavier than 104 M ⊙ in single-field inflation.

KW - inflation

KW - physics of the early universe

KW - primordial black holes

KW - primordial gravitational waves (theory)

U2 - 10.1088/1475-7516/2023/03/013

DO - 10.1088/1475-7516/2023/03/013

M3 - Journal article

AN - SCOPUS:85149820175

VL - 2023

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

SN - 1475-7516

IS - 3

M1 - 013

ER -