Higgs phenomenon for 4-d gravity in anti-de Sitter space

Massimo Porrati

    Research output: Contribution to journalArticle

    Abstract

    We show that standard Einstein gravity coupled to a free conformal field theory (CFT) in anti-de Sitter space can undergo a Higgs phenomenon whereby the graviton acquires a nonzero mass (and three extra polarizations). We show that the essential ingredients of this mechanism are the discreteness of the energy spectrum in AdS space, and unusual boundary conditions on the elementary fields of the CFT. These boundary conditions can be interpreted as implying the existence of a 3-d defect CFT living at the boundary of AdS4. Our free-field computation sheds light on the essential, model-independent features of AdS4 that give rise to massive gravity.

    Original languageEnglish (US)
    Pages (from-to)1421-1437
    Number of pages17
    JournalJournal of High Energy Physics
    Volume6
    Issue number4
    StatePublished - Apr 1 2002

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    Keywords

    • AdS-CFT and dS-CFT Correspondence
    • Models of Quantum Gravity
    • Space-Time Symmetries
    • Spontaneous Symmetry Breaking

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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