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Dark energy and decompactification in string gas cosmology

Francesc Ferrer·Syksy Rasanen
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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.

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Francesc Ferrer, Syksy Rasanen. 2006-02-06. Dark energy and decompactification in string gas cosmology. https://doi.org/10.1088/1126-6708%2F2006%2F02%2F016

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