Quasinormal modes and classical wave propagation in analogue black holes

By Emanuele Berti, V. Cardoso, J. Lemos. 2004

151 citations recorded by the source corpus.

Many properties of black holes can be studied using acoustic analogues in the laboratory through the propagation of sound waves. We investigate in detail sound wave propagation in a rotating acoustic (2+1)-dimensional black hole, which corresponds to the 'draining bathtub' fluid flow. We compute the quasinormal mode frequencies of this system and discuss late-time power-law tails. Because of the presence of an ergoregion, waves in a rotating acoustic black hole can be superradiantly amplified. We also compute superradiant reflection coefficients and instability time scales for the acoustic black hole bomb, the equivalent of the Press-Teukolsky black hole bomb. Finally we discuss quasinormal modes and late-time tails in a nonrotating canonical acoustic black hole, corresponding to an incompressible, spherically symmetric (3+1)-dimensional fluid flow.

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

View Paper: https://www.semanticscholar.org/paper/7a8336a25752de3d390d36ff567114c085e5e6dc

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. Brito
4. Matt Visser
5. Stefano Liberati
6. C. Barceló
7. Francisco S. N. Lobo
8. D. Mattingly

In Atomic and Molecular Physics, and Optics

1. Stefano Liberati
2. Matt Visser
3. Paolo Pani
4. C. Barceló
5. V. Cardoso
6. R. Brito
7. D. Mattingly
8. Francisco S. N. Lobo

In Nuclear and High Energy Physics

1. R. Brito
2. Paolo Pani
3. V. Cardoso
4. Stefano Liberati
5. Matt Visser
6. C. Barceló
7. Francisco S. N. Lobo
8. Jorge E Santos

Citations in the corpus

• Superradiance (2015, background): “Superradiance was studied in this effective acoustic spacetime in the frequency domain, by studying the amplification factors [278].”
• Superradiance: Energy Extraction, Black-Hole Bombs and Implications for Astrophysics and Particle Physics (2015, background): “17, the amplification factors for fluxes are Zm = |R|(2)−|I|2; the reflection coefficient depends only on the dimensionless parameter C/A [230] and therefore without loss of generality one can set A = c = 1.”
• Analogue Gravity (2005, background): “The quasinormal modes associated to this sink configuration have been analysed in [31].”