Inflation without Inflaton(s)

Simple item page
dc.creatorWatson, Scott
dc.creatorPerry, Malcolm J.
dc.creatorKane, Gordon L.
dc.creatorAdams, Fred C.
dc.date2006-10-05
dc.date2008-05-08
dc.date.accessioned2026-07-07T11:27:52Z
dc.date.available2026-07-07T11:27:52Z
dc.descriptionWe propose a model for early universe cosmology without the need for fundamental scalar fields. Cosmic acceleration and phenomenologically viable reheating of the universe results from a series of energy transitions, where during each transition vacuum energy is converted to thermal radiation. We show that this `cascading universe' can lead to successful generation of adiabatic density fluctuations and an observable gravity wave spectrum in some cases, where in the simplest case it reproduces a spectrum similar to slow-roll models of inflation. We also find the model provides a reasonable reheating temperature after inflation ends. This type of model may also be relevant for addressing the smallness of the vacuum energy today.
dc.description13 pages, 4 figures, published version
dc.identifierhttps://arxiv.org/abs/hep-th/0610054
dc.identifierhttp://arxiv.org/abs/hep-th/0610054
dc.identifierJCAP0711:017,2007
dc.identifierdoi:10.1088/1475-7516/2007/11/017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196268
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleInflation without Inflaton(s)
dc.typetext

Files

Collections

arXiv