Scalar-tensor mixing from icosahedral inflation
High Energy Physics - Theory
2021-05-05 v1
Abstract
We study the mixed scalar-tensor two-point function in icosahedral inflation. Within the regime of validity of the effective field theory, this has to be perturbatively small; in particular, much smaller than the scalar spectrum. However, it can be much bigger that the tensor spectrum itself. We discuss observational implications for the CMB temperature-polarization spectrum.
Keywords
Cite
@article{arxiv.2011.04687,
title = {Scalar-tensor mixing from icosahedral inflation},
author = {Alberto Nicolis and Guanhao Sun},
journal= {arXiv preprint arXiv:2011.04687},
year = {2021}
}