Wiggles in the cosmic microwave background radiation: echoes from non-singular cyclic-inflation
High Energy Physics - Theory
2010-12-28 v3 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
In this paper we consider a unique model of inflation where the universe undergoes rapid asymmetric oscillations, each cycle lasting millions of Planck time. Over many-many cycles the space-time expands to mimic the standard inflationary scenario. Moreover, these rapid oscillations leave a distinctive periodic signature in ln(k) in the primordial power spectrum, where k denotes the comoving scale. The best fit parameters of the cyclic-inflation model provides a very good fit to the 7-year WMAP data.
Keywords
Cite
@article{arxiv.1003.3206,
title = {Wiggles in the cosmic microwave background radiation: echoes from non-singular cyclic-inflation},
author = {Tirthabir Biswas and Anupam Mazumdar and Arman Shafieloo},
journal= {arXiv preprint arXiv:1003.3206},
year = {2010}
}
Comments
Computational details and a figure added