dS Solutions with co-dimension two branes in six dimensions
Abstract
We investigate 4D dS solutions with co-dimension two branes and finite 4D Planck mass in six dimensions. We present the conditions under which six-dimensional compactifications with holomorphic axion-dilaton field or models with pure gravity with local sources can yield 4D dS solutions. Different classes of solutions are specified by a holomorphic function describing different embeddings of multiple conical branes. Depending on the local singularities of this holomorphic function and the topology of the compact dimension one has to introduce D3-branes creating a deficit angle equal to \pi and/or D4-branes with positive tensions.
Keywords
Cite
@article{arxiv.1301.3160,
title = {dS Solutions with co-dimension two branes in six dimensions},
author = {Hamid R. Afshar and Hassan Firouzjahi and Shahrokh Parvizi},
journal= {arXiv preprint arXiv:1301.3160},
year = {2015}
}
Comments
34 pages, 3 figures, typos corrected, section III shortened, conclusion improved, results unchanged, To appear in CQG