Backreaction in Acoustic Black Holes

Details Backreaction in Acoustic Black Holes Backreaction in Acoustic Black Holes

2004-05-18

arxiv.org/abs/gr-qc/0405096v2

Phys.Rev.Lett. 94 (2005) 161302

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, revtex, 1 figure. revised version, published in prl

Scientific paper

10.1103/PhysRevLett.94.161302

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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