One-loop corrections to scalar and tensor perturbations during inflation in stochastic gravity

Yuko Urakawa, Keiichi Maeda

    研究成果: Article

    45 引用 (Scopus)

    抄録

    Based on the stochastic gravity, we study the loop corrections to the scalar and tensor perturbations during inflation. Since the loop corrections to scalar perturbations suffer infrared divergence, we consider the IR regularization to obtain the finite value. We find that the loop corrections to the scalar perturbations are amplified by the e-folding; in other words there appears the logarithmic correction, just as discussed by M. Sloth et al. On the other hand, we find that the tensor perturbations do not suffer from infrared divergence.

    元の言語English
    記事番号064004
    ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
    78
    発行部数6
    DOI
    出版物ステータスPublished - 2008 9 2

    Fingerprint

    Inflation
    Gravity
    Tensor
    Scalar
    tensors
    gravitation
    scalars
    Perturbation
    perturbation
    Divergence
    divergence
    Infrared
    Folding
    folding
    Regularization
    Logarithmic

    ASJC Scopus subject areas

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

    これを引用

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