Non-Gaussianity of Large-Scale Cosmological Perturbations
arXiv:astro-ph/0308033
Abstract
Perturbations in a universe with matter and cosmological constant are computed in terms of the primordial scalar perturbation up to second order. The calculation is easy -- a generalization of the spherical dust solution. Our expression might allow accurate measurements of the primordial non-Gaussianity.
arXiv comment8 pages
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