One-loop superstring cosmology and the nonsingular universe

Richard Easther, Keiichi Maeda

    Research output: Contribution to journalArticle

    96 Citations (Scopus)

    Abstract

    We study the cosmological implications of the one-loop terms in string expansion. In particular, we find nonsingular solutions which interpolate between a contracting universe and an expanding universe, and show that these solutions provide a mechanism for removing the initial conditions problem peculiar to spatially closed FRW cosmologies. In addition, we perform numerical calculations to show that the nonsingular cosmologics do not require a careful choice of initial conditions, and estimate the likely magnitude of higher order terms in string expansion.

    Original languageEnglish
    Pages (from-to)7252-7260
    Number of pages9
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume54
    Issue number12
    Publication statusPublished - 1996 Dec 15

    Fingerprint

    Superstring
    Cosmology
    cosmology
    Initial conditions
    strings
    universe
    Strings
    expansion
    Term
    Numerical Calculation
    Interpolate
    Likely
    Higher Order
    Closed
    estimates
    Estimate

    ASJC Scopus subject areas

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

    Cite this

    One-loop superstring cosmology and the nonsingular universe. / Easther, Richard; Maeda, Keiichi.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 54, No. 12, 15.12.1996, p. 7252-7260.

    Research output: Contribution to journalArticle

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