Non-gaussianity after BICEP2

Guido D'Amico, Matthew Kleban

    Research output: Contribution to journalArticle

    Abstract

    We analyze primordial non-Gaussianity in single-field inflationary models when the tensor-to-scalar ratio is large. Our results show that detectable levels of non-Gaussianity fNL∼50 are still possible in the simplest class of models described by the effective theory of inflation. However, the shape is very tightly constrained, making a sharp prediction that could be confirmed or falsified by a future detection of non-Gaussianity.

    Original languageEnglish (US)
    Article number081301
    JournalPhysical Review Letters
    Volume113
    Issue number8
    DOIs
    StatePublished - Aug 20 2014

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    tensors
    scalars
    predictions

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Non-gaussianity after BICEP2. / D'Amico, Guido; Kleban, Matthew.

    In: Physical Review Letters, Vol. 113, No. 8, 081301, 20.08.2014.

    Research output: Contribution to journalArticle

    D'Amico, Guido ; Kleban, Matthew. / Non-gaussianity after BICEP2. In: Physical Review Letters. 2014 ; Vol. 113, No. 8.
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