Test of non-Gaussianity can be useful to reveal the origin of primordial perturbations. We can obtain information about number of fields contributing to the curvature perturbation by using fnl and taunl. Detection of all the non-linearity parameters greatly helps us constrain the model of the early Universe. Very soon, Planck results will tell us something.
|Number of pages||1|
|Publication status||Published - 2012|
|Event||22nd Workshop on General Relativity and Gravitation in Japan 2012, JGRG 22 - Hongo, Tokyo, Japan|
Duration: 2012 Nov 12 → 2012 Nov 16
|Conference||22nd Workshop on General Relativity and Gravitation in Japan 2012, JGRG 22|
|Period||12/11/12 → 12/11/16|