Analogue of superradiance effect in acoustic black hole in the presence of disclination

Details Analogue of superradiance effect in acoustic black hole in the presence of disclination Analogue of superradiance effect in acoustic black hole in the presence of disclination

2007-05-27

arxiv.org/abs/0705.3916v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

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Scientific paper

In this paper we invstigate the possibility of the acoustic analogue of a
phenomenon like superradiance, that is, the amplification of a sound wave by
reflection from the ergo-region of a rotating acoustic black hole in the fluid
"draining bathtub" model in the presence of a desclination be amplified or
reduced in agreement with the value of the deficit angle.

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