Effective Field Theory of Anisotropic Inflation and Beyond. (arXiv:1910.11533v2 [hep-th] UPDATED)

Effective Field Theory of Anisotropic Inflation and Beyond. (arXiv:1910.11533v2 [hep-th] UPDATED)
<a href="http://arxiv.org/find/hep-th/1/au:+Gong_J/0/1/0/all/0/1">Jinn-Ouk Gong</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Noumi_T/0/1/0/all/0/1">Toshifumi Noumi</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Shiu_G/0/1/0/all/0/1">Gary Shiu</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Soda_J/0/1/0/all/0/1">Jiro Soda</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Takahashi_K/0/1/0/all/0/1">Kazufumi Takahashi</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Yamaguchi_M/0/1/0/all/0/1">Masahide Yamaguchi</a>

We develop an effective-field-theory (EFT) framework for inflation with
various symmetry breaking pattern. As a prototype, we formulate anisotropic
inflation from the perspective of EFT and construct an effective action of the
Nambu-Goldstone bosons for the broken time translation and rotation symmetries.
We also calculate the statistical anisotropy in the scalar two-point
correlation function for concise examples of the effective action.

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