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arXiv · 0707.3193

Nariai--Bertotti--Robinson spacetimes as a building material for one-way wormholes with horizons, but without singularity

Nikolai V. Mitskievich·Maria G. Medina Guevara·Hector Vargas Rodriguez
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Abstract

We discuss the problem of wormholes from the viewpoint of gluing together two Reissner--Nordström-type universes while putting between them a segment of the Nariai-type world (in both cases there are also present electromagnetic fields as well as the cosmological constant). Such a toy wormhole represents an example of one-way topological communication free from causal paradoxes, though involving a travel to next spacetime sheet since one has to cross at least a pair of horizons through which the spacetimes' junction occurs. We also consider the use of thin shells in these constructions. Such a ``material'' for wormholes we choose taking into account specific properties of the Nariai--Bertotti--Robinson spacetimes.

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Nikolai V. Mitskievich, Maria G. Medina Guevara, Hector Vargas Rodriguez. 2007-07-21. Nariai--Bertotti--Robinson spacetimes as a building material for one-way wormholes with horizons, but without singularity. https://doi.org/10.1142/9789812834300_0355

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