Consistency relation for single scalar inflation

Andrei Gruzinov

    Research output: Contribution to journalArticle

    Abstract

    Single scalar field inflation with a generic, nonquadratic in derivatives, field Lagrangian is considered. It is shown that non-Gaussianity of curvature perturbations is characterized by two dimensionless amplitudes. One of these amplitudes can be expressed in terms of the usual inflationary observables-the scalar power, the tensor power, and the tensor index. This consistency relation provides an observational test for the single scalar inflation.

    Original languageEnglish (US)
    Article number027301
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume71
    Issue number2
    DOIs
    StatePublished - 2005

    Fingerprint

    Inflation
    Tensor
    Scalar
    scalars
    Dimensionless
    tensors
    Scalar Field
    Curvature
    Perturbation
    Derivative
    curvature
    perturbation

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Nuclear and High Energy Physics
    • Mathematical Physics

    Cite this

    Consistency relation for single scalar inflation. / Gruzinov, Andrei.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 71, No. 2, 027301, 2005.

    Research output: Contribution to journalArticle

    @article{a54544cd310c496dbcefc80fdf55e42e,
    title = "Consistency relation for single scalar inflation",
    abstract = "Single scalar field inflation with a generic, nonquadratic in derivatives, field Lagrangian is considered. It is shown that non-Gaussianity of curvature perturbations is characterized by two dimensionless amplitudes. One of these amplitudes can be expressed in terms of the usual inflationary observables-the scalar power, the tensor power, and the tensor index. This consistency relation provides an observational test for the single scalar inflation.",
    author = "Andrei Gruzinov",
    year = "2005",
    doi = "10.1103/PhysRevD.71.027301",
    language = "English (US)",
    volume = "71",
    journal = "Physical review D: Particles and fields",
    issn = "1550-7998",
    publisher = "American Institute of Physics",
    number = "2",

    }

    TY - JOUR

    T1 - Consistency relation for single scalar inflation

    AU - Gruzinov, Andrei

    PY - 2005

    Y1 - 2005

    N2 - Single scalar field inflation with a generic, nonquadratic in derivatives, field Lagrangian is considered. It is shown that non-Gaussianity of curvature perturbations is characterized by two dimensionless amplitudes. One of these amplitudes can be expressed in terms of the usual inflationary observables-the scalar power, the tensor power, and the tensor index. This consistency relation provides an observational test for the single scalar inflation.

    AB - Single scalar field inflation with a generic, nonquadratic in derivatives, field Lagrangian is considered. It is shown that non-Gaussianity of curvature perturbations is characterized by two dimensionless amplitudes. One of these amplitudes can be expressed in terms of the usual inflationary observables-the scalar power, the tensor power, and the tensor index. This consistency relation provides an observational test for the single scalar inflation.

    UR - http://www.scopus.com/inward/record.url?scp=84927780440&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84927780440&partnerID=8YFLogxK

    U2 - 10.1103/PhysRevD.71.027301

    DO - 10.1103/PhysRevD.71.027301

    M3 - Article

    VL - 71

    JO - Physical review D: Particles and fields

    JF - Physical review D: Particles and fields

    SN - 1550-7998

    IS - 2

    M1 - 027301

    ER -