Note on Power-Law Inflation in Noncommutative Space-Time
Cosmology and Nongalactic Astrophysics
2014-04-02 v1 High Energy Physics - Theory
Abstract
In this paper, we propose a new method to calculate the mode functions in the noncommutative power-law inflation model. In this model, all the modes created when the stringy space-time uncertainty relation is satisfied are generated inside the Hubble horizon during inflation. It turns out that a linear term describing the noncommutative space-time effect contributes to the power spectra of the scalar and tensor perturbations. Confronting this model with latest results from \textit{Planck} and BICEP2, we constrain the parameters in this model and we find it is well consistent with observations.
Keywords
Cite
@article{arxiv.1404.0168,
title = {Note on Power-Law Inflation in Noncommutative Space-Time},
author = {Chao-Jun Feng and Xin-Zhou Li and Dao-Jun Liu},
journal= {arXiv preprint arXiv:1404.0168},
year = {2014}
}
Comments
9 pages, 2 figures