2022年
03/22
開催
開催日時
2022/03/22（火）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.