Inverse volume corrections to emergent tachyonic inflation in loop quantum cosmology
Cosmology and Nongalactic Astrophysics
2010-05-28 v2
Abstract
The emergent model in the context of loop quantum cosmology with a tachyon scalar field is studied. We find that there is a center equilibrium point in the semiclassical region and a saddle point in the classical region. If the potential of the tachyon field satisfies some conditions, the universe can stay at the center equilibrium point past-eternally and then oscillate infinitely around this point with the tachyon climbing up its potential. Once the potential reaches a critical value, these two equilibrium points coincide with each other and the oscillation phase is broken by an emergent inflation. In order to obtain a successful emergent tachyon inflation, a constraint on of tachyon is required.
Keywords
Cite
@article{arxiv.0905.3116,
title = {Inverse volume corrections to emergent tachyonic inflation in loop quantum cosmology},
author = {Puxun Wu and Shuang Nan Zhang and Hongwei Yu},
journal= {arXiv preprint arXiv:0905.3116},
year = {2010}
}
Comments
13 pages, 5 figures, a reference added