Phys. Rev. D 71, 084006 (2005) [7 pages]Quasinormal ringing for acoustic black holes at low temperatureReceived 17 November 2004; published 5 April 2005 We investigate a condensed matter “black hole” analog, taking the Gross-Pitaevskii (GP) equation as a starting point. The linearized GP equation corresponds to a wave equation on a black hole background, giving quasinormal modes under some appropriate conditions. We suggest that we can know the detailed characters and corresponding geometrical information about the acoustic black hole by observing quasinormal ringdown waves in the low temperature condensed matters. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.71.084006
DOI:
10.1103/PhysRevD.71.084006
PACS:
04.70.Bw, 47.90.+a
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