SU(N)-natural inflation

開催日時

2022/03/22 11:00 – 12:00

開催場所

オンライン (Zoom)

講演者

村井 開( 東京大学 )

言語

English

お問い合わせ

松戸 竜太郎 / matsudo-AT-post.kek.jp


概要

We study SU(N) gauge fields that couple to the inflaton through the Chern-Simons term. In this talk, I will shortly review the dynamics of SU(2) gauge fields during inflation and provide a general procedure to construct homogeneous, isotropic, and attractor solutions of SU(N) gauge fields during inflation. As specific examples, we construct the stable solutions for N=3 and 4 and numerically confirm that they are complete and attractor. I will also discuss the linear perturbations in our model. It is straightforward to apply our procedure to the other simple Lie groups.