Large non-Gaussian Halo Bias from Single Field Inflation
Cosmology and Nongalactic Astrophysics
2015-06-04 v2 General Relativity and Quantum Cosmology
Abstract
We calculate Large Scale Structure observables for non-Gaussianity arising from non-Bunch-Davies initial states in single field inflation. These scenarios can have substantial primordial non-Gaussianity from squeezed (but observable) momentum configurations. They generate a term in the halo bias that may be more strongly scale-dependent than the contribution from the local ansatz. We also discuss theoretical considerations required to generate an observable signature.
Keywords
Cite
@article{arxiv.1204.4409,
title = {Large non-Gaussian Halo Bias from Single Field Inflation},
author = {Ivan Agullo and Sarah Shandera},
journal= {arXiv preprint arXiv:1204.4409},
year = {2015}
}
Comments
30 pages, 14 figures, typos corrected and minor changes to match published version JCAP09(2012)007