Effective Field Theory of Anisotropic Inflation and Beyond
High Energy Physics - Theory
2020-08-14 v2 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
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.
Keywords
Cite
@article{arxiv.1910.11533,
title = {Effective Field Theory of Anisotropic Inflation and Beyond},
author = {Jinn-Ouk Gong and Toshifumi Noumi and Gary Shiu and Jiro Soda and Kazufumi Takahashi and Masahide Yamaguchi},
journal= {arXiv preprint arXiv:1910.11533},
year = {2020}
}
Comments
19 pages; matches published version