Lorentz violation increases the absorption cross section of rotating acoustic black holes at all frequencies and causes faster damping of their quasinormal modes.
Tedford, and Silke Weinfurtner.Observation of superradiance in a vortex flow
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Absorption and quasinormal modes by rotating acoustic black holes in Lorentz-violating background
Lorentz violation increases the absorption cross section of rotating acoustic black holes at all frequencies and causes faster damping of their quasinormal modes.