A symmetry for vanishing cosmological constant in an extra dimensional toy model
High Energy Physics - Theory
2009-11-10 v4 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Mathematical Physics
math.MP
Abstract
We introduce a symmetry principle that forbids a bulk cosmological constant in six and ten dimensions. Then the symmetry is extended so that it insures absence of 4-dimensional cosmological constant induced by the six dimensional curvature scalar, at least, for a class of metrics. A small cosmological constant may be induced by breaking of the symmetry by a small amount.
Cite
@article{arxiv.hep-th/0410063,
title = {A symmetry for vanishing cosmological constant in an extra dimensional toy model},
author = {Recai Erdem},
journal= {arXiv preprint arXiv:hep-th/0410063},
year = {2009}
}
Comments
Typos are corrected. Two paragraphs and two references are added. To appear in PLB