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Traversable wormholes from massless conformally coupled scalar fields

Carlos Barcelo·Matt Visser
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Abstract

The massless conformally coupled scalar field is characterized by the so-called "new improved stress-energy tensor", which is capable of classically violating the null energy condition. When coupled to Einstein gravity we find a three-parameter class of exact solutions. These exact solutions include the Schwarzschild geometry, assorted naked singularities, and a large class of traversable wormholes.

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Carlos Barcelo, Matt Visser. 1999-08-09. Traversable wormholes from massless conformally coupled scalar fields. https://doi.org/10.1016/s0370-2693(99)01117-x

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