The Cosmological Constant and Warped Extra Dimensions
High Energy Physics - Theory
2009-10-31 v1 High Energy Physics - Phenomenology
Abstract
We study the behavior of a general gravitational action, including quadratic terms in the curvature, supplemented by a compact scalar field in 4+1 dimensions. The generalized Einstein equation for this system admits solutions which are compact in one direction and Poincare invariant in the remaining directions. These solutions do not require any fine-tuning of the parameters in the action---including the cosmological constant---only that they should satisfy some mild inequalities. Some of these inequalities can be expressed in a universal form that does not depend on the number of extra compact dimensions when the scenario is generalized beyond 4+1 dimensions.
Cite
@article{arxiv.hep-th/0009127,
title = {The Cosmological Constant and Warped Extra Dimensions},
author = {Hael Collins and Bob Holdom},
journal= {arXiv preprint arXiv:hep-th/0009127},
year = {2009}
}
Comments
19 pages, uses harvmac and pictex, contains 8 figures