Wormholes as black hole foils

By T. Damour, S. Solodukhin. 2007

182 citations recorded by the source corpus.

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.

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/0c7c610cb96a22c39130b06648fd0a92111e72ba

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Paolo Pani
2. V. Cardoso
3. R. Konoplya
4. A. Zhidenko
5. R. Brito
6. Aron Jansen
7. Emanuele Berti
8. Cosimo Bambi

In Atomic and Molecular Physics, and Optics

1. Paolo Pani
2. R. Konoplya
3. V. Cardoso
4. A. Zhidenko

In Nuclear and High Energy Physics

1. Paolo Pani
2. V. Cardoso
3. A. Zhidenko
4. R. Konoplya
5. R. Brito
6. Aron Jansen
7. R. Schiappa
8. José Natário

Citations in the corpus

• Wormholes versus black holes: quasinormal ringing at early and late times (2016, background): “Notice, that it was first shown in [21] that the thinshell wormhole can mimic various properties of the Schwarzschild black hole, in particular, its quasinormal ringing.”
• Tests for the existence of black holes through gravitational wave echoes (2017, background): “holes, an example of which was discussed carefully in the context of “BH foils” [19]; fuzzballs [2, 3], were introduced as a microstate description of BHs in string theory.”