Stochastic Inflation and Dimensional Reduction

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dc.creatorKuhnel, Florian
dc.creatorSchwarz, Dominik J.
dc.date2008-05-14
dc.date2008-10-31
dc.date.accessioned2026-07-07T11:50:46Z
dc.date.available2026-07-07T11:50:46Z
dc.descriptionWe present a replica field-theoretic approach to stochastic inflation in which a manifestation of dimensional reduction is found. The scale above which the latter dominates grows exponentially fast with time and thus affects largest super-horizon scales. We find inevitable modifications of the spectral index on those scales. An explicit relation between the noise correlator and the non-gaussianity parameter f_NL is found.
dc.description4 pages, 1 figure; v2: minor changes; v3: revised and extended
dc.identifierhttps://arxiv.org/abs/0805.1998
dc.identifierhttp://arxiv.org/abs/0805.1998
dc.identifierPhys.Rev.D78:103501,2008
dc.identifierdoi:10.1103/PhysRevD.78.103501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203668
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleStochastic Inflation and Dimensional Reduction
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