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Backreaction in Acoustic Black Holes

Roberto Balbinot·Serena Fagnocchi·Alessandro Fabbri·Giovanni P. Procopio
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Abstract

The backreaction equations for the linearized quantum fluctuations in an acoustic black hole are given. The solution near the horizon, obtained within a dimensional reduction, indicates that acoustic black holes, unlike Schwarzschild ones, get cooler as they radiate phonons. They show remarkable analogies with near-extremal Reissner-Nordstrom black holes.

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Roberto Balbinot, Serena Fagnocchi, Alessandro Fabbri, Giovanni P. Procopio. 2005-05-31. Backreaction in Acoustic Black Holes. https://doi.org/10.1103/physrevlett.94.161302

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