6533b86dfe1ef96bd12c96c0
RESEARCH PRODUCT
QUANTUM EFFECTS IN ACOUSTIC BLACK HOLES: THE BACKREACTION.
Alessandro FabbriSerena FagnocchiRoberto Balbinotsubject
High Energy Physics - TheoryNuclear and High Energy PhysicsSonic black holeEvent horizonWhite holeAstrophysics::High Energy Astrophysical PhenomenaHAWKINGFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Charged black holeGeneral Relativity and Quantum CosmologyACOUSTICPhysics::Fluid DynamicsMicro black holeGeneral Relativity and Quantum CosmologyQuantum mechanicsPhysicsBLACK HOLEBACK REACTIONFLUIDCondensed Matter - Other Condensed MatterBlack holeHigh Energy Physics - Theory (hep-th)RADIATIONSchwarzschild radiusOther Condensed Matter (cond-mat.other)Hawking radiationdescription
We investigate the backreaction equations for an acoustic black hole formed in a Laval nozzle under the assumption that the motion of the fluid is one-dimensional. The solution in the near-horizon region shows that as phonons are (thermally) radiated the sonic horizon shrinks and the temperature decreases. This contrasts with the behaviour of Schwarzschild black holes, and is similar to what happens in the evaporation of (near-extremal) Reissner-Nordstrom black holes (i.e. infinite evaporation time). Finally, by appropriate boundary conditions the solution is extended in both the asymptotic regions of the nozzle.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-05-18 |