String Supported Wormhole Spacetimes and Causality Violations

Details String Supported Wormhole Spacetimes and Causality Violations String Supported Wormhole Spacetimes and Causality Violations

1996-02-27

arxiv.org/abs/gr-qc/9602053v1

Phys.Rev. D54 (1996) 3800-3805

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, LaTeX, 1 figure

Scientific paper

10.1103/PhysRevD.54.3800

We construct a static axisymmetric wormhole from the gravitational field of two Schwarzschild particles which are kept in equilibrium by strings (ropes) extending to infinity. The wormhole is obtained by matching two three-dimensional timelike surfaces surrounding each of the particles and thus spacetime becomes non-simply connected. Although the matching will not be exact in general it is possible to make the error arbitrarily small by assuming that the distance between the particles is much larger than the radius of the wormhole mouths. Whenever the masses of the two wormhole mouths are different, causality violating effects will occur.

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