Self-acceleration with quasidilaton

Gregory Gabadadze, Rampei Kimura, David Pirtskhalava

    Research output: Contribution to journalArticle

    Abstract

    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.

    Original languageEnglish (US)
    Article number024029
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume90
    Issue number2
    DOIs
    StatePublished - Jul 10 2014

    Fingerprint

    perturbation
    gravitons
    ghosts
    decoupling
    relativity
    invariance
    curvature
    tensors
    gravitation
    scalars
    gradients
    symmetry
    energy

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Self-acceleration with quasidilaton. / Gabadadze, Gregory; Kimura, Rampei; Pirtskhalava, David.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 90, No. 2, 024029, 10.07.2014.

    Research output: Contribution to journalArticle

    Gabadadze, Gregory ; Kimura, Rampei ; Pirtskhalava, David. / Self-acceleration with quasidilaton. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2014 ; Vol. 90, No. 2.
    @article{ef2809c07cec49c1bf7df9376432d8d4,
    title = "Self-acceleration with quasidilaton",
    abstract = "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.",
    author = "Gregory Gabadadze and Rampei Kimura and David Pirtskhalava",
    year = "2014",
    month = "7",
    day = "10",
    doi = "10.1103/PhysRevD.90.024029",
    language = "English (US)",
    volume = "90",
    journal = "Physical review D: Particles and fields",
    issn = "1550-7998",
    publisher = "American Institute of Physics",
    number = "2",

    }

    TY - JOUR

    T1 - Self-acceleration with quasidilaton

    AU - Gabadadze, Gregory

    AU - Kimura, Rampei

    AU - Pirtskhalava, David

    PY - 2014/7/10

    Y1 - 2014/7/10

    N2 - 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.

    AB - 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.

    UR - http://www.scopus.com/inward/record.url?scp=84904283511&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84904283511&partnerID=8YFLogxK

    U2 - 10.1103/PhysRevD.90.024029

    DO - 10.1103/PhysRevD.90.024029

    M3 - Article

    VL - 90

    JO - Physical review D: Particles and fields

    JF - Physical review D: Particles and fields

    SN - 1550-7998

    IS - 2

    M1 - 024029

    ER -