Inflation in de Sitter spacetime and CMB large scales anomaly
Cosmology and Nongalactic Astrophysics
2015-09-30 v1
Abstract
The influence of cosmological constant type dark energy in the early universe is investigated. This is accommodated by a new dispersion relation in de Sitter spacetime. We perform a global fitting to explore the cosmological parameters space by using the CosmoMC package with the recently released Planck TT and WMAP Polarization datasets. Using the results from global fitting, we compute a new CMB temperature-temperature spectrum. The obtained TT spectrum has lower power compared with the one based on CDM model at large scales.
Cite
@article{arxiv.1412.4965,
title = {Inflation in de Sitter spacetime and CMB large scales anomaly},
author = {Dong Zhao and Ming-Hua Li and Ping Wang and Zhe Chang},
journal= {arXiv preprint arXiv:1412.4965},
year = {2015}
}
Comments
4 pages, 1 table, 3 figures