Wormholes as Black Hole Foils

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dc.creatorDamour, Thibault
dc.creatorSolodukhin, Sergey N.
dc.date2007-04-20
dc.date.accessioned2026-07-07T10:59:41Z
dc.date.available2026-07-07T10:59:41Z
dc.descriptionWe 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.
dc.description13 pages, no figures, Latex
dc.identifierhttps://arxiv.org/abs/0704.2667
dc.identifierhttp://arxiv.org/abs/0704.2667
dc.identifierPhys.Rev.D76:024016,2007
dc.identifierdoi:10.1103/PhysRevD.76.024016
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/187486
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleWormholes as Black Hole Foils
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