Elastic inflation

Andrei Gruzinov

    Research output: Contribution to journalArticle

    Abstract

    Inflation of a universe filled by an elastic continuous medium is considered. Elastic inflation, while capable of describing current observations, is qualitatively different from standard inflationary models. The scalar and tensor modes keep evolving after crossing the horizon. Because of this superhorizon evolution, the amplitude of the tensor mode (inflationary gravitational wave) is not simply proportional to the energy density of the universe at the time of horizon crossing. The spectral index of tensor modes can be positive.

    Original languageEnglish (US)
    Article number063518
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume70
    Issue number6
    DOIs
    StatePublished - 2004

    Fingerprint

    Inflation
    Tensor
    tensors
    horizon
    Horizon
    universe
    Gravitational Waves
    Energy Density
    gravitational waves
    Standard Model
    flux density
    Directly proportional
    Scalar
    scalars
    Observation

    ASJC Scopus subject areas

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

    Cite this

    Elastic inflation. / Gruzinov, Andrei.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 70, No. 6, 063518, 2004.

    Research output: Contribution to journalArticle

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