Traversable wormholes from surgically modified Schwarzschild spacetimes

Details Traversable wormholes from surgically modified Schwarzschild spacetimes Traversable wormholes from surgically modified Schwarzschild spacetimes

2008-09-04

arxiv.org/abs/0809.0927v1

Nucl.Phys.B328:203-212,1989

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Pre-arXiv article from 1989; 12 pages, no figures. (Uploaded to arXiv to help researchers with limited library facilities.)

Scientific paper

10.1016/0550-3213(89)90100-4

In this paper I present a new class of traversable wormholes. This is done by surgically grafting two Schwarzschild spacetimes together in such a way that no event horizon is permitted to form. This surgery concentrates a non--zero stress--energy on the boundary layer between the two asymptotically flat regions. I shall investigate this stress--energy in detail using the "junction condition" formalism. A feature of the present analysis is that this class of traversable wormholes is sufficiently simple for a (partial) dynamical stability analysis to be carried out. The stability analysis places constraints on the equation of state of the exotic matter that comprises the throat of the wormhole.

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