Inflaton Two-Point Correlation in the Presence of a Cosmic String
Cosmology and Nongalactic Astrophysics
2013-05-29 v2
Abstract
Precise measurements of the microwave background anisotropy have confirmed the inflationary picture of approximately scale invariant, Gaussian primordial adiabatic density perturbations. However, there are some anomalies that suggest a small violation of rotational and/or translational invariance in the mechanism that generates the primordial density fluctuations. Motivated by this we study the two point correlation of a massless scalar (the inflaton) when the stress tensor contains the energy density from an infinitely long straight cosmic string in addition to a cosmological constant.
Keywords
Cite
@article{arxiv.0908.0543,
title = {Inflaton Two-Point Correlation in the Presence of a Cosmic String},
author = {Chien-Yao Tseng and Mark B. Wise},
journal= {arXiv preprint arXiv:0908.0543},
year = {2013}
}
Comments
7 pages; references added