An Anisotropic Wormhole:TUNNELLING in Time and Space

Details An Anisotropic Wormhole:TUNNELLING in Time and Space An Anisotropic Wormhole:TUNNELLING in Time and Space

1993-01-27

arxiv.org/abs/gr-qc/9301022v1

Phys.Rev. D49 (1994) 6493-6499

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

PLAIN-TEX, 16 pages (4 figures not included), Report DFTT 2/93

Scientific paper

10.1103/PhysRevD.49.6493

We discuss the structure of a gravitational euclidean instanton obtained through coupling of gravity to electromagnetism. Its topology at fixed $t$ is $S^1\times S^2$. This euclidean solution can be interpreted as a tunnelling to a hyperbolic space (baby universe) at $t=0$ or alternatively as a static wormhole that joins the two asymptotically flat spaces of a Reissner--Nordstr\"om type solution with $M=0$.

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