Inflatonless Inflation
High Energy Physics - Phenomenology
2015-05-18 v6 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We consider a 4+N dimensional Einstein gravity coupled to a non-linear sigma model. This theory admits a solution in which the N extra dimensions contract exponentially while the ordinary space expand exponentially. Physically, the non-linear sigma fields induce the dynamical compactification of the extra dimensions, which in turn drives inflation. No inflatons are required.
Cite
@article{arxiv.1002.4044,
title = {Inflatonless Inflation},
author = {Chiu Man Ho and Thomas W. Kephart},
journal= {arXiv preprint arXiv:1002.4044},
year = {2015}
}
Comments
12 pages, version to appear in IJMPA