Final published version
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Research output: Contribution to Journal/Magazine › Conference article › peer-review
Research output: Contribution to Journal/Magazine › Conference article › peer-review
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TY - JOUR
T1 - A numerical approach to stochastic inflation and primordial black holes
AU - Tomberg, Eemeli
N1 - 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.
PY - 2022/2/21
Y1 - 2022/2/21
N2 - 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.
AB - 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.
U2 - 10.1088/1742-6596/2156/1/012010
DO - 10.1088/1742-6596/2156/1/012010
M3 - Conference article
AN - SCOPUS:85131873472
VL - 2156
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012010
T2 - 17th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2021
Y2 - 26 August 2021 through 3 September 2021
ER -