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arXiv · 1011.3822

On Dumb Holes and their Gravity Duals

Sumit R. Das·Archisman Ghosh·Jae-Hyuk Oh·Alfred D. Shapere
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Abstract

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.

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Sumit R. Das, Archisman Ghosh, Jae-Hyuk Oh, Alfred D. Shapere. 2011-03-23. On Dumb Holes and their Gravity Duals. https://doi.org/10.1007/jhep04(2011)030

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