ΛcDM epoch reconstruction from F(R, G) and modified Gauss-Bonnet gravities

E. Elizalde, R. Myrzakulov, V. V. Obukhov, D. Sez-Gómez

    Research output: Contribution to journalArticleResearchpeer-review

    144 Citations (Scopus)

    Abstract

    Dark energy cosmology is considered in a modified Gauss-Bonnet model of gravity with and without a scalar field. It is shown that these generalizations of general relativity endow it with a very rich cosmological structure: it may naturally lead to an effective cosmological constant, quintessence or phantom cosmic acceleration, with the possibility of describing the transition from a decelerating to an accelerating phase explicitly. It is demonstrated here that these modified GB and scalar-GB theories are perfectly viable as cosmological models. They can describe the ΛCDM cosmological era without any need for a cosmological constant. The specific properties of these theories of gravity in different particular cases, such as the de Sitter one, are studied. © 2010 IOP Publishing Ltd.
    Original languageEnglish
    Article number095007
    JournalClassical and Quantum Gravity
    Volume27
    Issue number9
    DOIs
    Publication statusPublished - 14 Apr 2010

    Fingerprint

    Dive into the research topics of 'ΛcDM epoch reconstruction from F(R, G) and modified Gauss-Bonnet gravities'. Together they form a unique fingerprint.

    Cite this