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Can a wormhole supported by only small amounts of exotic matter really be traversable?

Peter K. F. Kuhfittig
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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 paper 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.

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Peter K. F. Kuhfittig. 2004-01-12. Can a wormhole supported by only small amounts of exotic matter really be traversable?. https://doi.org/10.1103/physrevd.68.067502

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