NASA NTRS · 19900035583
Conformal scalar field wormholes
Abstract
The Euclidian Einstein equations with a cosmological constant and a conformally coupled scalar field are solved, taking the metric to be of the Robertson-Walker type. In the case Lambda = 0, solutions are found which represent a wormhole connecting two asymptotically flat Euclidian regions. In the case Lambda greater than 0, the solutions represent tunneling from a small Tolman-like universe to a large Robertson-Walker universe.
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Halliwell, Jonathan J., Laflamme, Raymond. 1989-12-01. Conformal scalar field wormholes. https://ntrs.nasa.gov/citations/19900035583
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