Solving the hierarchy problem with exponentially large dimensions

Nima Arkani-Hamed, Lawrence Hall, David Smith, Neal Weiner

    Research output: Contribution to journalArticlepeer-review


    In theories with (sets of) two large extra dimensions and supersymmetry in the bulk, the presence of non-supersymmetric brane defects naturally induces a logarithmic potential for the volume of the transverse dimensions. Since the logarithm of the volume rather than the volume itself is the natural variable, parameters of O(10) in the potential can generate an exponentially large size for the extra dimensions. This provides a true solution to the hierarchy problem, on the same footing as technicolor or dynamical supersymmetry breaking. The area moduli have a Compton wavelength of about a millimeter and mediate Yukawa interactions with gravitational strength. We present a simple explicit example of this idea which generates two exponentially large dimensions. In this model, the area modulus mass is in the millimeter range even for six dimensional Planck scales as high as 100 TeV.

    Original languageEnglish (US)
    Article number105002
    Pages (from-to)1-7
    Number of pages7
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Issue number10
    StatePublished - Nov 15 2000

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)


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