dc.contributor.author | Andersen, Jens Oluf | |
dc.contributor.author | Tranberg, Anders | |
dc.contributor.author | Eriksson, Magdalena Britt | |
dc.date.accessioned | 2022-02-18T10:08:39Z | |
dc.date.available | 2022-02-18T10:08:39Z | |
dc.date.created | 2022-02-17T13:26:19Z | |
dc.date.issued | 2022-02 | |
dc.identifier.citation | Andersen, J.O., Tranberg, A., Eriksson, M.B. (2022) Stochastic inflation from quantum field theory and the parametric dependence of the effective noise amplitude. 2022:121 | en_US |
dc.identifier.issn | 1126-6708 | |
dc.identifier.uri | https://hdl.handle.net/11250/2979970 | |
dc.description.abstract | The non-linear dynamics of long-wavelength cosmological fluctuations may be phrased in terms of an effective classical, but stochastic evolution equation. The stochastic noise represents short-wavelength modes that continually redshift into the long-wavelength domain. The effective evolution may be derived from first principles quantum field theory in an expanding background, through a sequence of approximations calling for additional scrutiny. We perform such an analysis, putting particular emphasis on the amplitude of the stochastic noise, which ultimately determines the cosmological correlations and provides a non-perturbative IR regulator to the dynamics. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Springer Nature Switzerland AG | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.subject | fysikk | en_US |
dc.title | Stochastic inflation from quantum field theory and the parametric dependence of the effective noise amplitude | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © The Authors | en_US |
dc.subject.nsi | VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430 | en_US |
dc.source.pagenumber | 121 (2022) | en_US |
dc.source.journal | Journal of High Energy Physics (JHEP) | en_US |
dc.identifier.doi | 10.1007/JHEP02(2022)121 | |
dc.identifier.cristin | 2002862 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |