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Gravity wave analogs of black holes

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arxiv gr-qc/0205099 v2 pith:FEC3N3XV submitted 2002-05-23 gr-qc

Ralf Schützhold , William G. Unruh This is my paper · ORCID
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keywords blackgravityholesanalogsfluidusedwavesadjusted
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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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Cited by 4 Pith papers

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    Thermal Hawking-like radiation in moving-mirror cavities is robust only for selected expanding configurations and low frequencies; all other configurations tested show non-thermal spectra.

  2. Analog charged black hole formation via percolation: Exploring cosmic censorship and Hoop conjecture

    gr-qc 2025-02 reject novelty 4.0 of 10

    A Fock-space percolation model of a chiral spin chain is claimed to reproduce charged-black-hole scaling exponents, with exponential cluster growth proposed as the key formation criterion.

  3. Superradiance -- the 2020 Edition

    gr-qc 2015-01 unverdicted novelty 4.0 of 10

    Black-hole superradiance extracts energy via the ergoregion and can trigger instabilities with applications to dark matter, beyond-Standard-Model physics, and laboratory analogs.

  4. Dynamical analog spacetimes from nonlinear perturbations in a topological material

    gr-qc 2025-07 reject novelty 3.0 of 10

    A nonlinear acoustic metric and microkelvin Hawking temperature are claimed for Berry-curvature-modified graphene electron flow, but the derivation is incomplete and the temperature has inconsistent units.

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