Negative frequencies and negative norms in analogue Hawking radiation systems by Aguero-Santacruz, Raul, Bermudez, David

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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

“…Using axion-like particles as an example, we show that line signals emerging from a superradiated axion cloud combined with black hole Hawking radiation in extragalactic and galactic halos, along with microlensing observations lead to complementary constraints on parameter space combinations including the axion-photon coupling, axion mass, black hole mass, and its dark matter fraction, fPBH. …”
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Analog Hawking radiation from a spin-sonic horizon in a two-component Bose–Einstein condensate by Berti, Anna, Fernandes, Lennart, Butera, Salvatore,  Recati, Alessio, Wouters, Michiel, Carusotto, Iacopo

Subjects: “…Hawking radiation…”
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Surface gravity analysis in Gauss-Bonnet and Barrow black holes by Everton M.C. Abreu

“…The SG also acts in the emission of Hawking radiation being connected to its temperature. Concerning this last issue, the quantum features that permeate Hawking radiation provide us a direct indication that a BH has its temperature directly connected to its area and that its entropy is proportional to the horizon area. …”
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Analogue black holes and scalar-dilaton theory by Moss, Ian G.

“…By introducing an effective scalar-dilaton model we show that closed form expressions can be obtained for the time-dependent Hawking flux and the energy density of the Hawking radiation. We show that, in the absence superluminal modes, there is a vacuum instability. …”
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Evolution of interior entropy of a loop quantum-corrected black hole pierced by a cosmic string by Wei Zhang

“…We derive evolution relation between interior entropy and Bekenstein-Hawking entropy for a loop quantum-corrected black hole with large mass pierced by an infinitely straight cosmic string during Hawking radiation. We find that the present cosmic string can influence the evolution relation between these two types of entropy under black hole evaporation and the second law of thermodynamics is satisfied for the total variation of these two types of entropy.…”
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Relative entropy formulation of thermalization process in a Schwarzschild spacetime by Si-Wei Han, Zhichun Ouyang, Zhiyao Hu, Jun Feng

“…Finally, from a perspective of quantum thermodynamics, we recast the free energy change of the UDW detector undergoing Hawking radiation into an entropic combination form, where the classical Kullback-Leibler divergence and quantum coherence are presented in specific QRE-like forms. …”
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