Can I read SU($N$)-natural inflation on EtoBox?

SU($N$)-natural inflation by Fujita, Tomohiro; Mukaida, Kyohei; Murai, Kai; Nakatsuka, Hiromasa is a scholarly article available to read on EtoBox.

What is SU($N$)-natural inflation about?

We study SU($N$) gauge fields that couple to the inflaton through the Chern-Simons term. We provide a general procedure to construct homogeneous, isotropic, and attractor solutions of the gauge fields during inflation. The gauge fields develop various VEVs corresponding to different spontaneous symmetry breaking patterns of SU($N$) where embedded SU($2$) subgroups are broken with the spatial rotation SO($3$) symmetry. As specific examples, we construct the stable solutions for $N = 3$ and $4$. We also numerically solve the gauge field dynamics and confirm that our analytic solutions are complete and attractor. It is straightforward to apply our procedure to the other simple Lie groups.

Author

Fujita, Tomohiro; Mukaida, Kyohei; Murai, Kai; Nakatsuka, Hiromasa

Published

2021

Language

EN