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arXiv · 1407.6948

BICEP's bispectrum

Jonathan S. Horner·Carlo R. Contaldi
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Abstract

The simplest interpretation of the Bicep2 result is that the scalar primordial power spectrum is slightly suppressed at large scales. These models result in a large tensor-to-scalar ratio $r$. In this work we show that the type of inflationary trajectory favoured by Bicep2 also leads to a larger non-Gaussian signal at large scales, roughly an order of magnitude larger than a standard slow-roll trajectory.

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Jonathan S. Horner, Carlo R. Contaldi. 2014-07-25. BICEP's bispectrum. https://arxiv.org/abs/1407.6948

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