SU(N)-natural inflation
| 開始日時 | 2022/03/22 11:00 |
|---|---|
| 終了日時 | 2022/03/22 12:00 |
| 講演者 | 村井 開（ 東京大学 ） |
| 会場 | オンライン (Zoom) |
| 連絡先 | 松戸 竜太郎 / matsudo-AT-post.kek.jp |
| 言語 | English |
| ウェブサイト |
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.
