Inflation from superstring and M-theory compactification with higher order corrections. - II. - Case of quartic Weyl terms

Kenta Akune, Keiichi Maeda, Nobuyoshi Ohta

    Research output: Contribution to journalArticle

    51 Citations (Scopus)

    Abstract

    We present a detailed study of inflationary solutions in M theory with higher order quantum corrections. We first exhaust all exact and asymptotic solutions of exponential and power-law expansions in this theory with quartic curvature corrections, and then perform a linear perturbation analysis around fixed points for the exact solutions in order to see which solutions are more generic and give interesting cosmological models. We find an interesting solution in which the external space expands exponentially and the internal space is static both in the original and Einstein frames. Furthermore, we perform a numerical calculation around this solution and find numerical solutions which give enough e-foldings. We also briefly summarize similar solutions in type II superstrings.

    Original languageEnglish
    Article number103506
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume73
    Issue number10
    DOIs
    Publication statusPublished - 2006

    Fingerprint

    M-Theory
    Superstring
    Quartic
    Compactification
    Inflation
    Exact Solution
    Higher Order
    Cosmological Models
    Perturbation Analysis
    Asymptotic Solution
    Term
    Folding
    Numerical Calculation
    Expand
    Albert Einstein
    Power Law
    Fixed point
    Curvature
    Numerical Solution
    Internal

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Nuclear and High Energy Physics
    • Mathematical Physics

    Cite this

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