A Bound Concerning Primordial Non-Gaussianity

Details A Bound Concerning Primordial Non-Gaussianity A Bound Concerning Primordial Non-Gaussianity

2005-07-26

arxiv.org/abs/astro-ph/0507608v2

JCAP 0510:005,2005

Astronomy and Astrophysics

Astrophysics

5 pages, typos corrected, added references for section 1

Scientific paper

10.1088/1475-7516/2005/10/005

Seery and Lidsey have calculated the three-point correlator of the light scalar fields, a few Hubble times after horizon exit during inflation. Lyth and Rodriguez have calculated the contribution of this correlator to the three-point correlator of the primordial curvature perturbation. We calculate an upper bound on that contribution, showing that it is too small ever to be observable.

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