Gravity wave analogs of black holes

Details Gravity wave analogs of black holes Gravity wave analogs of black holes

2002-05-23

arxiv.org/abs/gr-qc/0205099v2

Phys.Rev. D66 (2002) 044019

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages RevTeX, 5 figures, section VI modified

Scientific paper

10.1103/PhysRevD.66.044019

It is demonstrated that gravity waves of a flowing fluid in a shallow basin can be used to simulate phenomena around black holes in the laboratory. Since the speed of the gravity waves as well as their high-wavenumber dispersion (subluminal vs. superluminal) can be adjusted easily by varying the height of the fluid (and its surface tension) this scenario has certain advantages over the sonic and dielectric black hole analogs, for example, although its use in testing quantum effects is dubious. It can be used to investigate the various classical instabilities associated with black (and white) holes experimentally, including positive and negative norm mode mixing at horizons. PACS: 04.70.-s, 47.90.+a, 92.60.Dj, 04.80.-y.

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