The accelerated universe and the Moon

Gia Dvali, Andrei Gruzinov, Matias Zaldarriaga

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Cosmologically motivated theories that explain the small acceleration rate of the Universe via the modification of gravity at very large, horizon, or superhorizon distances, can be tested by precision gravitational measurements at much shorter scales, such as the Earth-Moon distance. Contrary to the naive expectation the predicted corrections to the Einsteinian metric near gravitating sources are so significant that they might fall within the sensitivity of the proposed Lunar Ranging experiments. The key reason for such corrections is the van Dam-Veltman-Zakharov discontinuity present in linearized versions of all such theories, and its subsequent absence at the nonlinear level in the manner of Vainshtein.

    Original languageEnglish (US)
    Article number024012
    JournalPhysical Review D
    Volume68
    Issue number2
    DOIs
    StatePublished - 2003

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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