Dynamical suppression of non-adiabatic modes

Recent analyses of the WMAP 5-year data constrain possible non-adiabatic contributions to the initial conditions of CMB anisotropies. Depending upon the early dynamics of the plasma, the amplitude of the entropic modes can experience a different suppression by the time of photon decoupling. Explicit...

Descripción completa

Detalles Bibliográficos
Autor principal: Giovannini, Massimo
Lenguaje:eng
Publicado: 2008
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.78.087301
http://cds.cern.ch/record/1122847
_version_ 1780914614778724352
author Giovannini, Massimo
author_facet Giovannini, Massimo
author_sort Giovannini, Massimo
collection CERN
description Recent analyses of the WMAP 5-year data constrain possible non-adiabatic contributions to the initial conditions of CMB anisotropies. Depending upon the early dynamics of the plasma, the amplitude of the entropic modes can experience a different suppression by the time of photon decoupling. Explicit examples of the latter observation are presented both analytically and numerically when the post-inflationary dynamics is dominated by a stiff contribution.
id cern-1122847
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2008
record_format invenio
spelling cern-11228472019-09-30T06:29:59Zdoi:10.1103/PhysRevD.78.087301http://cds.cern.ch/record/1122847engGiovannini, MassimoDynamical suppression of non-adiabatic modesAstrophysics and AstronomyRecent analyses of the WMAP 5-year data constrain possible non-adiabatic contributions to the initial conditions of CMB anisotropies. Depending upon the early dynamics of the plasma, the amplitude of the entropic modes can experience a different suppression by the time of photon decoupling. Explicit examples of the latter observation are presented both analytically and numerically when the post-inflationary dynamics is dominated by a stiff contribution.arXiv:0808.3692CERN-PH-TH-2008-182oai:cds.cern.ch:11228472008-08-28
spellingShingle Astrophysics and Astronomy
Giovannini, Massimo
Dynamical suppression of non-adiabatic modes
title Dynamical suppression of non-adiabatic modes
title_full Dynamical suppression of non-adiabatic modes
title_fullStr Dynamical suppression of non-adiabatic modes
title_full_unstemmed Dynamical suppression of non-adiabatic modes
title_short Dynamical suppression of non-adiabatic modes
title_sort dynamical suppression of non-adiabatic modes
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1103/PhysRevD.78.087301
http://cds.cern.ch/record/1122847
work_keys_str_mv AT giovanninimassimo dynamicalsuppressionofnonadiabaticmodes

Ejemplares similares