Brans-Dicke Wormhole Revisited
General Relativity and Quantum Cosmology
2010-03-25 v2
Abstract
A basic constraint to be satisfied by Brans class I solution for being a traversible wormhole is derived. It is argued that the solution could be a wormhole analogue of the Horowitz-Ross naked black hole. It is further demonstrated that the wormhole is traversible only "in principle", but not in practice. Using a recently proposed measure of total gravitational energy inside a static wormhole configuration, it is shown that the wormhole contains repulsive gravity required for the defocussing of orbits at the throat.
Cite
@article{arxiv.0910.1109,
title = {Brans-Dicke Wormhole Revisited},
author = {Amrita Bhattacharya and Ilnur Nigmatzyanov and Ramil Izmailov and Kamal K. Nandi},
journal= {arXiv preprint arXiv:0910.1109},
year = {2010}
}
Comments
13 pages, 6 figures, accepted for publication in Class. Quant. Grav