Traversable wormholes supported by dark gravity
Abstract
A fundamental property in wormhole physics is the flaring-out condition of the throat, which through the Einstein field equation entails the violation of the null energy condition. In the context of modified theories of gravity, it has also been shown that the normal matter can be imposed to satisfy the energy conditions, and it is the higher order curvature terms, interpreted as a gravitational fluid, that sustain these non-standard wormhole geometries, fundamentally different from their counterparts in general relativity. We review recent work in wormhole physics in the context of modified theories of gravity.
Cite
@article{arxiv.1211.1170,
title = {Traversable wormholes supported by dark gravity},
author = {Francisco S. N. Lobo},
journal= {arXiv preprint arXiv:1211.1170},
year = {2012}
}
Comments
3 pages; contribution to the proceedings of the Thirteenth Marcel Grossmann Meeting, Stockholm University, Sweden, 1-7 July, 2012; based on a talk in the AT3 "Gravitational Fields with Sources, Regular Black Holes, Quasiblack Holes, and Analog Black Holes" parallel session