A numerical approach to stochastic inflation and primordial black holes

Tomberg, Eemeli (2022) A numerical approach to stochastic inflation and primordial black holes. Journal of Physics: Conference Series, 2156 (1): 012010. ISSN 1742-6588

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Abstract

Certain models of cosmic inflation produce strong cosmological perturbations at short length scales, which may later collapse into primordial black holes. To find the statistics of these strong perturbations and the ensuing black holes, it is necessary to go beyond linear perturbation theory. Stochastic inflation provides a way to take the leading non-linear effects into account. In this contribution, I discuss recent progress in numerical computations of stochastic inflation. A numerical approach can include more of the non-linearities than an analytical calculation, and can be applied to single-field inflationary models with any potential.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Physics: Conference Series
Additional Information:
Funding Information: This work was supported by the Estonian Research Council grants PRG803, PRG1055, and MOBTT5 and by the EU through the European Regional Development Fund CoE program TK133 “The Dark Side of the Universe”. The work in [3] was done in collaboration with Daniel Figueroa, Sami Raatikainen, and Syksy Räsänen. Publisher Copyright: © 2022 Institute of Physics Publishing. All rights reserved.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
?? physics and astronomy(all) ??
ID Code:
211961
Deposited By:
Deposited On:
31 Dec 2023 01:24
Refereed?:
Yes
Published?:
Published
Last Modified:
11 Jan 2024 12:10