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arXiv · 1910.11533

Effective Field Theory of Anisotropic Inflation and Beyond

Jinn-Ouk Gong·Toshifumi Noumi·Gary Shiu·Jiro Soda·Kazufumi Takahashi·Masahide Yamaguchi
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Abstract

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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Jinn-Ouk Gong, Toshifumi Noumi, Gary Shiu, Jiro Soda, Kazufumi Takahashi, Masahide Yamaguchi. 2019-10-25. Effective Field Theory of Anisotropic Inflation and Beyond. https://doi.org/10.1088/1475-7516%2F2020%2F08%2F027

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