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arXiv · 1612.04205

Wormholes and black universes communicated with extra dimensions

K. A. Bronnikov·P. A. Korolyov·A. Makhmudov·M. V. Skvortsova
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Abstract

In 6D general relativity with a phantom scalar field as a source of gravity, we present solutions that implement a transition from an effective 4D geometry times small extra dimensions to an effectively 6D space-time where the physical laws are different from ours. We consider manifolds with the structure M0 x M1 x M2, where M0 is 2D Lorentzian space-time while each of M1 and M2 can be a 2-sphere or a 2-torus. Some solutions describe wormholes with spherical symmetry in our space-time and toroidal extra dimensions. Others are of black universe type: at one end there is a 6D asymptotically anti-de Sitter black hole while beyond the horizon the geometry tends to a 4D de Sitter cosmology times a small 2D spherical extra space.

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K. A. Bronnikov, P. A. Korolyov, A. Makhmudov, M. V. Skvortsova. 2016-12-13. Wormholes and black universes communicated with extra dimensions. https://doi.org/10.1088/1742-6596/798/1/012090

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