Self-acceleration with quasidilaton

Gregory Gabadadze, Rampei Kimura, David Pirtskhalava

研究成果: Article

18 被引用数 (Scopus)

抄録

Quasidilaton massive gravity is an extension of massive general relativity to a theory with additional scale invariance and approximate internal Galilean symmetry. The theory has a novel self-accelerated solution with the metric indistinguishable (in the decoupling limit) from the de Sitter space, its curvature set by the graviton mass. The spectra of tensor, vector, and scalar perturbations on this solution contain neither ghosts nor gradient instabilities or superluminal modes, for a range of the parameter space. This represents an example of a self-accelerated solution with viable perturbations, attainable within a low-energy effective field theory.

元の言語English
記事番号024029
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
90
発行部数2
DOI
出版物ステータスPublished - 2014 7 10
外部発表Yes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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