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On stochastic effects and primordial black-hole formation
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC). University of Michigan, USA.
Number of Authors: 22019 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 79, no 11, article id 954Article in journal (Refereed) Published
Abstract [en]

The effect of large quantum fluctuations on primordial black-hole formation for inflationary models with a quasi-inflection point is investigated. By using techniques of stochastic inflation in combination with replica field theory and the Feynman-Jensen variational method, it is non-perturbatively demonstrated that the abundance of primordial black holes is amplified by several orders of magnitude as compared to the classical computation.

Place, publisher, year, edition, pages
2019. Vol. 79, no 11, article id 954
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-177511DOI: 10.1140/epjc/s10052-019-7466-0ISI: 000499467700001OAI: oai:DiVA.org:su-177511DiVA, id: diva2:1384615
Available from: 2020-01-10 Created: 2020-01-10 Last updated: 2020-01-10Bibliographically approved

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Kühnel, FlorianFreese, Katherine
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