Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-11-16
JHEP 1104:030,2011
Physics
High Energy Physics
High Energy Physics - Theory
24 pages, 4 figures
Scientific paper
10.1007/JHEP04(2011)030
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.
Das Sumit R.
Ghosh Archisman
OH Jae-Hyuk
Shapere Alfred D.
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