Quasinormal modes and classical wave propagation in analogue black holes
Abstract
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 latetime powerlaw 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 PressTeukolsky black hole bomb. Finally we discuss quasinormal modes and latetime tails in a nonrotating canonical acoustic black hole, corresponding to an incompressible, spherically symmetric (3+1)dimensional fluid flow.
 Authors:
 McDonnell Center for the Space Sciences, Department of Physics, Washington University, St. Louis, Missouri 63130 (United States)
 (Portugal)
 Publication Date:
 OSTI Identifier:
 20698244
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. D, Particles Fields; Journal Volume: 70; Journal Issue: 12; Other Information: DOI: 10.1103/PhysRevD.70.124006; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BLACK HOLES; COSMOLOGY; FLUID FLOW; INSTABILITY; REFLECTION; SOUND WAVES; SPACETIME; WAVE PROPAGATION
Citation Formats
Berti, Emanuele, Cardoso, Vitor, Lemos, Jose P.S., Centro de Fisica Computacional, Universidade de Coimbra, P3004516 Coimbra, and Centro Multidisciplinar de Astrofisica  CENTRA, Departamento de Fisica, Instituto Superior Tecnico, Avenu Rovisco Pais 1, 1049001 Lisbon. Quasinormal modes and classical wave propagation in analogue black holes. United States: N. p., 2004.
Web. doi:10.1103/PhysRevD.70.124006.
Berti, Emanuele, Cardoso, Vitor, Lemos, Jose P.S., Centro de Fisica Computacional, Universidade de Coimbra, P3004516 Coimbra, & Centro Multidisciplinar de Astrofisica  CENTRA, Departamento de Fisica, Instituto Superior Tecnico, Avenu Rovisco Pais 1, 1049001 Lisbon. Quasinormal modes and classical wave propagation in analogue black holes. United States. doi:10.1103/PhysRevD.70.124006.
Berti, Emanuele, Cardoso, Vitor, Lemos, Jose P.S., Centro de Fisica Computacional, Universidade de Coimbra, P3004516 Coimbra, and Centro Multidisciplinar de Astrofisica  CENTRA, Departamento de Fisica, Instituto Superior Tecnico, Avenu Rovisco Pais 1, 1049001 Lisbon. Wed .
"Quasinormal modes and classical wave propagation in analogue black holes". United States.
doi:10.1103/PhysRevD.70.124006.
@article{osti_20698244,
title = {Quasinormal modes and classical wave propagation in analogue black holes},
author = {Berti, Emanuele and Cardoso, Vitor and Lemos, Jose P.S. and Centro de Fisica Computacional, Universidade de Coimbra, P3004516 Coimbra and Centro Multidisciplinar de Astrofisica  CENTRA, Departamento de Fisica, Instituto Superior Tecnico, Avenu Rovisco Pais 1, 1049001 Lisbon},
abstractNote = {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 latetime powerlaw 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 PressTeukolsky black hole bomb. Finally we discuss quasinormal modes and latetime tails in a nonrotating canonical acoustic black hole, corresponding to an incompressible, spherically symmetric (3+1)dimensional fluid flow.},
doi = {10.1103/PhysRevD.70.124006},
journal = {Physical Review. D, Particles Fields},
number = 12,
volume = 70,
place = {United States},
year = {Wed Dec 15 00:00:00 EST 2004},
month = {Wed Dec 15 00:00:00 EST 2004}
}

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