Non-gaussianity after BICEP2

Guido D'Amico, Matthew Kleban

    Research output: Contribution to journalArticlepeer-review

    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

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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