Creation of a brane world with a bulk scalar field

Koh Suke Aoyanagi, Keiichi Maeda

    Research output: Contribution to journalArticle

    Abstract

    We investigate a creation of a brane world with a bulk scalar field. We consider an exponential potential of a bulk scalar field; V(φ) ∝ (-2βφ), where β is the parameter of the theory. This model is based on a supersymmetric theory, and includes Randall-Sundrum model (β = 0) and the 5-dimensional effective model of the Horva-Witten theory (β = 1). We show that for this potential a brane instanton is constructed only when a curvature of a brane vanishes, that is, the brane is flat. We construct an instanton with two branes and a singular instanton with a single brane. The Euclidean action of the singular instanton solution is finite if β2 > 2/3. We also calculate perturbations of the action around a singular instanton solution in order to show that the singular instanton is well-defined.

    Original languageEnglish
    Pages (from-to)219-220
    Number of pages2
    JournalJournal of Physics: Conference Series
    Volume31
    Issue number1
    DOIs
    Publication statusPublished - 2006 Mar 22

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    instantons
    scalars
    curvature
    perturbation

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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    Creation of a brane world with a bulk scalar field. / Aoyanagi, Koh Suke; Maeda, Keiichi.

    In: Journal of Physics: Conference Series, Vol. 31, No. 1, 22.03.2006, p. 219-220.

    Research output: Contribution to journalArticle

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