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Cosmology Without Averaging

We construct a cosmological model consisting of a large number of identical, regularly spaced masses. The model does not rely on any averaging procedures, or on a global Friedmann-Robertson-Walker (FRW) background. It is a solution of Einstein's equations up to higher order corrections in a per...

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Autor principal: Clifton, Timothy
Lenguaje:eng
Publicado: 2010
Materias:
Acceso en línea:https://dx.doi.org/10.1088/0264-9381/28/16/164011
http://cds.cern.ch/record/1264018
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author Clifton, Timothy
author_facet Clifton, Timothy
author_sort Clifton, Timothy
collection CERN
description We construct a cosmological model consisting of a large number of identical, regularly spaced masses. The model does not rely on any averaging procedures, or on a global Friedmann-Robertson-Walker (FRW) background. It is a solution of Einstein's equations up to higher order corrections in a perturbative expansion, but has large-scale dynamics that can differ from those of FRW. In particular, we find solutions that are attracted toward expansion of the form R~t^0.71, as well as solutions without dark energy that undergo accelerating expansion at late-times.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
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spelling cern-12640182021-05-03T20:10:34Zdoi:10.1088/0264-9381/28/16/164011http://cds.cern.ch/record/1264018engClifton, TimothyCosmology Without AveragingGeneral Relativity and CosmologyWe construct a cosmological model consisting of a large number of identical, regularly spaced masses. The model does not rely on any averaging procedures, or on a global Friedmann-Robertson-Walker (FRW) background. It is a solution of Einstein's equations up to higher order corrections in a perturbative expansion, but has large-scale dynamics that can differ from those of FRW. In particular, we find solutions that are attracted toward expansion of the form R~t^0.71, as well as solutions without dark energy that undergo accelerating expansion at late-times.arXiv:1005.0788oai:cds.cern.ch:12640182010-05-06
spellingShingle General Relativity and Cosmology
Clifton, Timothy
Cosmology Without Averaging
title Cosmology Without Averaging
title_full Cosmology Without Averaging
title_fullStr Cosmology Without Averaging
title_full_unstemmed Cosmology Without Averaging
title_short Cosmology Without Averaging
title_sort cosmology without averaging
topic General Relativity and Cosmology
url https://dx.doi.org/10.1088/0264-9381/28/16/164011
http://cds.cern.ch/record/1264018
work_keys_str_mv AT cliftontimothy cosmologywithoutaveraging