Effective field theory approach to string gas cosmology

Thorsten Battefeld, Scott Watson

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


We derive the 4D low energy effective field theory for a, closed string gas on a time dependent FRW background. We examine the solutions and find that although the Brandenberger-Vafa. mechanism at late times no longer leads to radion stabilization, the radion rolls slowly enough that the scenario is still of interest. In particular, we find a simple example of the string inspired dark matter recently proposed by Gubser and Peebles.

Original languageEnglish (US)
Pages (from-to)1-13
Number of pages13
JournalJournal of Cosmology and Astroparticle Physics
Issue number6
StatePublished - Jun 2004
Externally publishedYes


  • Cosmology with extra dimensions
  • Physics of the early universe
  • String theory and cosmology

ASJC Scopus subject areas

  • Astronomy and Astrophysics


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