Chaplygin inflation in loop quantum cosmology
General Relativity and Quantum Cosmology
2009-08-20 v1
Abstract
In this paper we discuss the inflationary universe in the context of a Chaplygin gas equation of state within the framework of the effective theory of loop quantum cosmology. Under the slow-roll approximation, we calculate the primordial perturbations for this model. We give the general expressions of the scalar spectral index, its running, and the tensor-to-scalar ratio, etc. For the chaotic inflation with a quadratic potential, using the WMAP 5-year results, we determine the parameters of the Chaplygin inflation model in loop quantum cosmology. The results are consistent with the WMAP observations.
Keywords
Cite
@article{arxiv.0902.0928,
title = {Chaplygin inflation in loop quantum cosmology},
author = {Xin Zhang and Jingfei Zhang and Jinglei Cui and Li Zhang},
journal= {arXiv preprint arXiv:0902.0928},
year = {2009}
}
Comments
6 pages, accepted for publication in Mod. Phys. Lett. A