Stationary vs. singular points in an accelerating FRW cosmology derived from six-dimensional Einstein-Gauss-Bonnet gravity

E. Elizalde, A. N. Makarenko, V. V. Obukhov, K. E. Osetrin, A. E. Filippov

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    41 Citations (Scopus)

    Abstract

    Six-dimensional Einstein-Gauss-Bonnet gravity (with a linear Gauss-Bonnet term) is investigated. This theory is inspired by basic features of results coming from string and M-theory. Dynamical compactification is carried out and it is seen that a four-dimensional accelerating FRW universe is recovered, when the two-dimensional internal space radius shrinks. A non-perturbative structure of the corresponding theory is identified which has either three or one stable fixed points, depending on the Gauss-Bonnet coupling being positive or negative. A much richer structure than in the case of the perturbative regime of the dynamical compactification recently studied by Andrew, Bolen, and Middleton is exhibited. © 2006 Elsevier B.V. All rights reserved.
    Original languageEnglish
    Pages (from-to)1-6
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume644
    Issue number1
    DOIs
    Publication statusPublished - 4 Jan 2007

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