Dark energy and decompactification in string gas cosmology

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http://hdl.handle.net/10138/310244

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Ferrer , F & Räsänen , S 2006 , ' Dark energy and decompactification in string gas cosmology ' , Journal of High Energy Physics , vol. 2006 , no. JHEP02(2006) , pp. 016 . https://doi.org/10.1088/1126-6708/2006/02/016

Title: Dark energy and decompactification in string gas cosmology
Author: Ferrer, Francesc; Räsänen, Syksy
Other contributor: University of Helsinki, Department of Physics
Date: 2006-02-06
Language: eng
Number of pages: 22
Belongs to series: Journal of High Energy Physics
ISSN: 1029-8479
DOI: https://doi.org/10.1088/1126-6708/2006/02/016
URI: http://hdl.handle.net/10138/310244
Abstract: We study the stability of extra dimensions in string gas cosmology at late times. Vacuum energy and, interestingly, baryons lead to decompactification after they become dynamically important. The string gas can stabilise the effect of baryons, but not that of vacuum energy. However, we find that the interplay of baryons and strings can lead to acceleration in the visible dimensions, without the need for vacuum energy.
Subject: 114 Physical sciences
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