Wormhole throats in $R^{m}$ gravity
General Relativity and Quantum Cosmology
2007-05-23 v2
Abstract
We consider wormhole geometries subject to a gravitational action consisting of non-linear powers of the Ricci scalar. Specifically, wormhole throats are studied in the case where Einstein gravity is supplemented with a Ricci-squared and inverse Ricci term. In this modified theory it is found that static wormhole throats respecting the weak energy condition can exist. The analysis is done locally in the vicinity of the throat, which eliminates certain restrictions on the models introduced by considering the global topology.
Cite
@article{arxiv.gr-qc/0410088,
title = {Wormhole throats in $R^{m}$ gravity},
author = {N. Furey and A. DeBenedictis},
journal= {arXiv preprint arXiv:gr-qc/0410088},
year = {2007}
}
Comments
12 pages, 3 figures. Update includes more references and clarification that "zero tidal force" class of models are considered. Accepted for publication in Classical and Quantum Gravity