Wormholes as Black Hole Foils

Abstract

We study to what extent wormholes can mimic the observational features of black holes. It is surprisingly found that many features that could be thought of as ``characteristic'' of a black hole (endowed with an event horizon) can be closely mimicked by a globally static wormhole, having no event horizon. This is the case for: the apparently irreversible accretion of matter down a hole, no-hair properties, quasi-normal-mode ringing, and even the dissipative properties of black hole horizons, such as a finite surface resistivity equal to 377 Ohms. The only way to distinguish the two geometries on an observationally reasonable time scale would be through the detection of Hawking's radiation, which is, however, too weak to be of practical relevance for astrophysical black holes. We point out the existence of an interesting spectrum of quantum microstates trapped in the throat of a wormhole which could be relevant for storing the information ``lost'' during a gravitational collapse.

13 pages, no figures, Latex

References in corpus (8)

• Quasi-Normal Modes of Stars and Black Holes
• On the gravitational field of a mass point according to Einstein's theory
• Black Holes in Astrophysics
• On The Nature of the Compact Dark Mass at the Galactic Center
• Where are all the gravastars? Limits upon the gravastar model from accreting black holes
• Restoring Unitarity in BTZ Black Hole
• The entropy of black holes: a primer
• Can Black Hole Relax Unitarily?

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