Dark energy and decompactification in string gas cosmology | Zendy

Francesc Ferrer | Zendy; Syksy Räsänen | Zendy

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Dark energy and decompactification in string gas cosmology

Author(s) -

Francesc Ferrer,

Syksy Räsänen

Publication year - 2006

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2006/02/016

Subject(s) - physics , cosmology , string (physics) , baryon , dark energy , string cosmology , particle physics , vacuum energy , theoretical physics , astrophysics , quantum mechanics , relationship between string theory and quantum field theory , quantum , quantum gravity

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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