Abstract
Recent studies have shown that (a) quantum effects may be sufficient to support a wormhole throat and (b) the total amount of “exotic matter” can be made arbitrarily small. Unfortunately, using only small amounts of exotic matter may result in a wormhole that flares out too slowly to be traversable in a reasonable length of time. Combined with the Ford-Roman constraints, the wormhole may also come close to having an event horizon at the throat. This Brief Report examines a model that overcomes these difficulties, while satisfying the usual traversability conditions. This model also confirms that the total amount of exotic matter can indeed be made arbitrarily small.
- Received 28 April 2003
DOI:https://doi.org/10.1103/PhysRevD.68.067502
©2003 American Physical Society