On Dumb Holes and their Gravity Duals
Nov, 2010
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Abstract: (arXiv)
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.Note:
- 24 pages, 4 figures
- Gauge-gravity correspondence
- AdS-CFT Correspondence
- Holography and quark-gluon plasmas
- gravitation: duality
- spectrum: thermal
- fluid: conformal
- fluid: charge
- horizon: acoustic
- quasinormal mode
- temperature
References(38)
Figures(4)