Low energy effective theory on a regularized brane in six-dimensional flux compactifications
Abstract
Conical brane singularities in six-dimensional flux compactification models can be resolved by introducing cylindrical codimension-one branes with regular caps instead of 3-branes (a la Kaluza-Klein braneworlds with fluxes). In this paper, we consider such a regularized braneworld with axial symmetry in six-dimensional Einstein-Maxwell theory. We derive a low energy effective theory on the regularized brane by employing the gradient expansion approach, and show that standard four-dimensional Einstein gravity is recovered at low energies. Our effective equations extend to the nonlinear gravity regime, implying that conventional cosmology can be reproduced in the regularized braneworld.
Cite
@article{arxiv.0708.2534,
title = {Low energy effective theory on a regularized brane in six-dimensional flux compactifications},
author = {Shunsuke Fujii and Tsutomu Kobayashi and Tetsuya Shiromizu},
journal= {arXiv preprint arXiv:0708.2534},
year = {2008}
}
Comments
11 pages, minor corrections, accepted for publication in Physical Review D