Small Cosmological Constants from a Modified Randall-Sundrum Model
High Energy Physics - Theory
2007-10-18 v2
Abstract
We study a mechanism, inspired from the mechanism for generating the gauge hierarchy in Randall-Sundrum model, to investigate the cosmological constant problem. First we analyze the bulk cosmological constant and brane vacuum energies in RS model. We show that the five-dimensional bulk cosmological constant and the vacuum energies of the two branes all obtain their natural values. Finally we argue how we can generate a small four-dimensional effective cosmological constant on the branes through modifying the original RS model.
Cite
@article{arxiv.0707.3484,
title = {Small Cosmological Constants from a Modified Randall-Sundrum Model},
author = {Bei Jia and Xi-Guo Lee},
journal= {arXiv preprint arXiv:0707.3484},
year = {2007}
}
Comments
6 pages