Soft inflation

Andrew L. Berkin, Keiichi Maeda, Jun'Ichi Yokoyama

    Research output: Contribution to journalArticle

    70 Citations (Scopus)

    Abstract

    We study the cosmology resulting from two coupled scalar fields, one which is either a new or chaotic-type inflaton and another which has an exponentially decaying potential. Such a potential may appear in the conformally transformed frame of generalized Einstein theories such as the Jordan-Brans-Dicke theory. The constraints necessary for successful inflation are examined. We find conventional grand unified theory models such as SU(5) are compatible with new inflation, while restrictions on the self-coupling constant are significantly loosened for chaotic inflation.

    Original languageEnglish
    Pages (from-to)141-144
    Number of pages4
    JournalPhysical Review Letters
    Volume65
    Issue number2
    Publication statusPublished - 1990

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    Jordan
    grand unified theory
    cosmology
    constrictions
    scalars

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Berkin, A. L., Maeda, K., & Yokoyama, JI. (1990). Soft inflation. Physical Review Letters, 65(2), 141-144.

    Soft inflation. / Berkin, Andrew L.; Maeda, Keiichi; Yokoyama, Jun'Ichi.

    In: Physical Review Letters, Vol. 65, No. 2, 1990, p. 141-144.

    Research output: Contribution to journalArticle

    Berkin, AL, Maeda, K & Yokoyama, JI 1990, 'Soft inflation', Physical Review Letters, vol. 65, no. 2, pp. 141-144.
    Berkin AL, Maeda K, Yokoyama JI. Soft inflation. Physical Review Letters. 1990;65(2):141-144.
    Berkin, Andrew L. ; Maeda, Keiichi ; Yokoyama, Jun'Ichi. / Soft inflation. In: Physical Review Letters. 1990 ; Vol. 65, No. 2. pp. 141-144.
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