On dumb holes and their gravity duals

Inhomogeneous fluid flows which become supersonic are known to produce acoustic analogs of ergoregions and horizons. This leads to Hawking-like radiation of phonons with a temperature essentially given by the gradient of the velocity at the horizon. We find such acoustic dumb holes in charged confor...

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Bibliographic Details
Published in:The journal of high energy physics 2011-04, Vol.2011 (4), Article 30
Main Authors: Das, Sumit R., Ghosh, Archisman, Oh, Jae-Hyuk, Shapere, Alfred D.
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Elementary Particles
Fluid dynamics
Fluid flow
Gravitation
High energy physics
Horizon
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Relativity Theory
String Theory
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Summary:Inhomogeneous fluid flows which become supersonic are known to produce acoustic analogs of ergoregions and horizons. This leads to Hawking-like radiation of phonons with a temperature essentially given by the gradient of the velocity at the horizon. We find such acoustic dumb holes in charged conformal fluids and use the fluid-gravity correspondence to construct dual gravity solutions. A class of quasinormal modes around these gravitational backgrounds perceive a horizon. Upon quantization, this implies a thermal spectrum for these modes.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP04(2011)030