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

Massimo Porrati

doi:10.1088/1126-6708/2002/04/058

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

Massimo Porrati

Research output: Contribution to journal › Article › peer-review

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 language	English (US)
Pages (from-to)	1421-1437
Number of pages	17
Journal	Journal of High Energy Physics
Volume	6
Issue number	4
DOIs	https://doi.org/10.1088/1126-6708/2002/04/058
State	Published - Apr 1 2002

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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10.1088/1126-6708/2002/04/058

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AB - 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.

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

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Keywords

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