The Stochastic Gravitational-Wave Background and the Inflation to Radiation Transition in the Early Universe

dc.creatorHenriques, Alfredo B.
dc.date2003-09-18
dc.date2007-06-27
dc.date.accessioned2026-07-07T11:29:13Z
dc.date.available2026-07-07T11:29:13Z
dc.descriptionIn this paper we calculate the gravitational-wave power-spectra corresponding to different types of transitions between the inflationary regime and the radiation era. We study four cases, where inflation is followed by a stiff matter phase, or by a dust dominated phase, or by a combination of the two, before the universe enters the radiation era. Use is made of differential equations for the Bogoliubov coefficients, allowing us to model all the transitions between the different eras as continuous. New features appear, for frequencies above 10^{7} rad/s in an otherwise flat part of the spectrum.
dc.description14 pages, 4 figures, An error was found in the original version leading to changes in the figures. The interesting features in the spectrum now appear at much higher frequencies of the order of the GHz
dc.identifierhttps://arxiv.org/abs/astro-ph/0309508
dc.identifierhttp://arxiv.org/abs/astro-ph/0309508
dc.identifierClass.Quant.Grav.21:3057,2004; Erratum-ibid.24:6431-6434,2007
dc.identifierdoi:10.1088/0264-9381/21/12/015 10.1088/0264-9381/24/24/C01
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196640
dc.subjectAstrophysics
dc.titleThe Stochastic Gravitational-Wave Background and the Inflation to Radiation Transition in the Early Universe
dc.typetext

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