90 citations · 187 across the 3 of their papers we have counts for
3 papers
astro-ph.CO2009★ 42 cited
Primordial Non-Gaussianities from the Trispectra in Multiple Field Inflationary Models
Xian Gao, Miao Li, Chunshan Lin
We investigate the primordial non-Gaussianities from the trispectra in multi-field inflation models, which can be seen as generalization of multi-field -inflation and multi-DBI…
astro-ph.CO2009★ 55 cited
Primordial Trispectrum from Entropy Perturbations in Multifield DBI Model
Xian Gao, Bin Hu
We investigate the primordial trispectra of the general multifield DBI inflationary model. In contrast with the single field model, the entropic modes can source the curvature pert…
astro-ph2008★ 90 cited
Primordial Non-Gaussianities of General Multiple Field Inflation
Xian Gao
We perform a general study of the primordial scalar non-Gaussianities in multi-field inflationary models in Einstein gravity. We consider models governed by a Lagrangian which is a…