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.
|Journal||Journal of High Energy Physics|
|State||Published - 2011|
- AdS-CFT correspondence
- Gauge-gravity correspondence
- Holography and quark-gluon plasmas
ASJC Scopus subject areas
- Nuclear and High Energy Physics