Superradiant Amplification of Acoustic Beams via Medium Rotation.

@article{Faccio2019SuperradiantAO,
  title={Superradiant Amplification of Acoustic Beams via Medium Rotation.},
  author={D. Faccio and E. Wright},
  journal={Physical review letters},
  year={2019},
  volume={123 4},
  pages={
          044301
        }
}
  • D. Faccio, E. Wright
  • Published 2019
  • Physics, Medicine
  • Physical review letters
  • Superradiant gain is the process in which waves are amplified via their interaction with a rotating body, examples including the evaporation of a spinning black hole and electromagnetic emission from a rotating metal sphere. In this Letter we elucidate how superradiance may be realized experimentally in the field of acoustics, and predict the possibility of nonreciprocally amplifying or absorbing acoustic beams carrying orbital angular momentum by propagating them through an absorbing medium… CONTINUE READING
    10 Citations

    Figures and Topics from this paper

    Amplification of waves from a rotating body
    • 4
    • PDF
    Superradiant scattering of orbital angular momentum beams
    • 6
    • PDF
    Penrose Superradiance in Nonlinear Optics.
    • PDF
    Dynamics landscape for acoustic superradiance
    • C. Gooding
    • Physics, Medicine
    • Philosophical Transactions of the Royal Society A
    • 2020
    • 3
    • Highly Influenced
    • PDF
    Zel'dovich Amplification in a Superconducting Circuit.
    • 3
    • PDF
    Estimate of the superradiance spectrum in dispersive media
    • T. Torres
    • Physics, Medicine
    • Philosophical Transactions of the Royal Society A
    • 2020
    • 3
    • PDF
    An acoustic black hole
    Underwater Acoustic Multiplexing Communication by Pentamode Metasurface
    • PDF

    References

    SHOWING 1-10 OF 51 REFERENCES
    Nonlinear Zel'dovich Effect: Parametric Amplification from Medium Rotation.
    • 5
    • PDF
    Negative Group Velocity
    • 34
    • PDF
    Spontaneous emission by rotating objects: a scattering approach.
    • 30
    • PDF