Gravity on a brane in infinite-volume extra space

Gia Dvali, Gregory Gabadadze

    Research output: Contribution to journalArticle

    Abstract

    We generalize the mechanism proposed in a previous paper and show that a four-dimensional relativistic tensor theory of gravitation can be obtained on a delta-function brane in flat infinite-volume extra space. In particular, we demonstrate that the induced Ricci scalar gives rise to Einstein's gravity on a delta-function type brane if the number of space-time dimensions is bigger than five. The bulk space exhibits the phenomenon of infrared transparency. That is to say, the bulk can be probed by gravitons with vanishing four-dimensional momentum square, while it is unaccessible to higher modes. This provides an attractive framework for solving the cosmological constant problem.

    Original languageEnglish (US)
    Article number065007
    JournalPhysical Review D
    Volume63
    Issue number6
    DOIs
    StatePublished - 2001

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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