Backreaction in Acoustic Black Holes

2004/05/31 by Roberto Balbinot, Serena Fagnocchi, Alessandro Fabbri +2 · 5 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Quantum Electrodynamics and Casimir Effect #cond-mat.other #gr-qc #hep-th

paper · pdf · doi:10.1103/physrevlett.94.161302

published as Phys.Rev.Lett. 94 (2005) 161302 · 4 pages, revtex, 1 figure. revised version, published in prl

openalex publication_date 2005/04/29 · arxiv created 2005/05/31 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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-Nordström black holes.

Citations

• Quantum Fields in Curved Space
• Quantum effects in acoustic black holes: The backreaction

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