Cosmological models arising from generalized scalar field potentials

Luis P. Chimento, Vicenç Méndez, Norberte Zuccalá

    Research output: Contribution to journalArticleResearchpeer-review

    15 Citations (Scopus)

    Abstract

    We find exact solutions for isotropic cosmological models containing a self-interacting scalar field possessing an interaction potential of a general class. In particular, we consider the combination of exponential potentials arising from a perturbation expansion in superstring theories. We also consider a general class of potentials that give rise to power-law and polynomial chaotic inflation, as well as the intermediate inflationary models. We compute the scalar and tensor perturbations produced in those models and use the exact solutions obtained to examine the consistency of the first-order slow-roll expansion.
    Original languageEnglish
    Pages (from-to)3749-3763
    JournalClassical and Quantum Gravity
    Volume16
    DOIs
    Publication statusPublished - 1 Nov 1999

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