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arXiv · 1308.2651

Cylindrical wormholes with positive cosmological constant

Martín G. Richarte
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Abstract

We construct cylindrical, traversable wormholes with finite radii by taking into account the cut-and-paste procedure for the case of cosmic string manifolds with a positive cosmological constant. Under reasonable assumptions about the equation of state of the matter located at the shell, we find that the wormhole throat undergoes a monotonous evolution provided it moves at a constant velocity. In order to explore the dynamical nonlinear behaviour of the wormhole throat, we consider that the matter at the shell is supported by anisotropic Chaplygin gas, anti-Chaplygin gas, or a mixed of Chaplygin and anti-Chaplygin gases implying that wormholes could suffer an accelerated expansion or contraction but the oscillatory behavior seems to be forbidden.

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BibTeXRIS

Martín G. Richarte. 2013-08-13. Cylindrical wormholes with positive cosmological constant. https://doi.org/10.1103/physrevd.88.027507

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