Wormhole as the end state of two-dimensional black hole evaporation

Details Wormhole as the end state of two-dimensional black hole evaporation Wormhole as the end state of two-dimensional black hole evaporation

1999-07-05

arxiv.org/abs/gr-qc/9907013v1

Phys.Lett. B458 (1999) 245-251

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, 1 figure, latex. to appear in Phys. Lett. B (1999)

Scientific paper

10.1016/S0370-2693(99)00581-X

We present a specific two-dimensional dilaton gravity model in which a black hole evaporates leaving a wormhole at the end state. As the black hole formed by infalling matter in a initially static spacetime evaporates by emitting Hawking radiation, the black hole singularity that is initially hidden behind a timelike apparent horizon meets the shrinking horizon. At this intersection point, we imposed boundary conditions which require disappearance of the black hole singularity and generation of the exotic matter which is the source of the wormhole as the end state of the black hole. These, of course, preserve energy conservation and continuity of the metric.

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