Oscillations in the bispectrum

Details Oscillations in the bispectrum Oscillations in the bispectrum

2010-10-11

arxiv.org/abs/1010.2234v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, 2 figures, submitted to JOP: Conference Series, PASCOS 2010

Scientific paper

There exist several models of inflation that produce primordial bispectra that contain a large number of oscillations. In this paper we discuss these models, and aim at finding a method of detecting such bispectra in the data. We explain how the recently proposed method of mode expansion of bispectra might be able to reconstruct these spectra from separable basis functions. Extracting these basis functions from the data might then lead to observational constraints on these models.

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