Radion cosmology and stabilization
General Relativity and Quantum Cosmology
2014-09-12 v3 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We solve the Einstein's equation in five-dimensional spacetime for Randall Sundrum Brane world model with time dependent radion field to study variation of brane scale factor with time. We have shown that as radion field decreases with time compactifying the extra dimension, the scale factor increases exponentially with time leading to inflationary scenario. We have also proposed a time dependent generalization of Goldberger-Wise moduli stabilization mechanism to explain the time evolution of the radion field to reach a stable value after which the scale factor on the brane exits from inflationary expansion.
Cite
@article{arxiv.1306.0805,
title = {Radion cosmology and stabilization},
author = {Sumanta Chakraborty and Soumitra Sengupta},
journal= {arXiv preprint arXiv:1306.0805},
year = {2014}
}
Comments
Thoroughly revised; Matches published version