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On the non-linear scale of cosmological perturbation theory

We discuss the convergence of cosmological perturbation theory. We prove that the polynomial enhancement of the non-linear corrections expected from the effects of soft modes is absent in equal-time correlators like the power or bispectrum. We first show this at leading order by resumming the most i...

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Detalles Bibliográficos
Autores principales: Blas, Diego, Garny, Mathias, Konstandin, Thomas
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1475-7516/2013/09/024
http://cds.cern.ch/record/1538424