paper

Brans-Dicke Wormhole Revisited

arXiv:0910.1109 · doi:10.1088/0264-9381/26/23/235017

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.

13 pages, 6 figures, accepted for publication in Class. Quant. Grav

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