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Decay rate and low-energy near-horizon dynamics of acoustic black holes
Title
Decay rate and low-energy near-horizon dynamics of acoustic black holes
Authors
Kim S.-W.
;
Kim W.T.
;
Oh J.J.
Ewha Authors
김성원
SCOPUS Author ID
김성원
Issue Date
2005
Journal Title
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN
0370-2693
Citation
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics vol. 608, no. 41276, pp. 10 - 16
Indexed
SCI; SCIE; SCOPUS
Document Type
Article
Abstract
We study the low-energy dynamics of an acoustic black hole near the sonic horizon. For the experimental test of black hole evaporation in the laboratory, the decay rate (greybody factor) of the acoustic black hole (sonic hole) can be calculated by the usual low-energy perturbation method. As a consequence, we obtain the decay rate of the sonic horizon from the absorption and the reflection coefficients. Moreover, we show that the thermal emission from the sonic horizon is only proportional to a control parameter which describes the velocity of the fluid. © 2005 Elsevier B.V. All rights reserved.
DOI
10.1016/j.physletb.2005.01.012
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