Superradiant phononic emission from the analog spin ergoregion in a two-component Bose–Einstein condensate by Berti, Anna, Giacomelli, Luca, Carusotto, Iacopo

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Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing by James B. Dent, Bhaskar Dutta, Tao Xu

“…Superradiance provides a unique opportunity for investigating dark sectors as well as primordial black holes, which themselves are candidates for dark matter over a wide mass range. …”
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Scalar perturbation around rotating Einstein-bumblebee BTZ black holes under Robin boundary conditions: Quasinormal modes and superradiance by Chengjia Chen, Fengkai Ge, Qiyuan Pan, Jiliang Jing

“…We also discuss the energy and angular momentum fluxes across the black hole horizon under Robin boundary conditions, and probe the changes of the threshold parameter related to the superradiance in Robin boundary conditions with the symmetry breaking parameter and the spin parameter. …”
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Ultra narrow linewidth frequency reference via measurement and feedback by Barberena, Diego, Lewis-Swan, Robert J., Rey, Ana Maria, Thompson, James K.

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Correspondence between grey-body factors and quasinormal frequencies for rotating black holes by R.A. Konoplya, A. Zhidenko

“…This correspondence is limited to non-superradiant waves.…”
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