Non-gaussianity after BICEP2

Guido D'Amico; Matthew Kleban

doi:10.1103/PhysRevLett.113.081301

Non-gaussianity after BICEP2

Guido D'Amico, Matthew Kleban

Research output: Contribution to journal › Article › peer-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 language	English (US)
Article number	081301
Journal	Physical Review Letters
Volume	113
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.113.081301
State	Published - Aug 20 2014

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.113.081301

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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.",

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Non-gaussianity after BICEP2

Abstract

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