On Dumb Holes and their Gravity Duals
High Energy Physics - Theory
2013-04-25 v2
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.
Keywords
Cite
@article{arxiv.1011.3822,
title = {On Dumb Holes and their Gravity Duals},
author = {Sumit R. Das and Archisman Ghosh and Jae-Hyuk Oh and Alfred D. Shapere},
journal= {arXiv preprint arXiv:1011.3822},
year = {2013}
}
Comments
24 pages, 4 figures