Charged scalar perturbations on Kerr-EMDA black holes admit exact confluent Heun solutions, producing universal imaginary frequency spacing of 1/(2M) and dilaton-dependent entropy quanta, with closed-form greybody factors in massless limits.
Low-frequency scalar absorption cross sections for stationary black holes
2 Pith papers cite this work, alongside 51 external citations. Polarity classification is still indexing.
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Derives partial-wave scalar absorption in Klein-Gordon separable Johannsen spacetimes and identifies finite-frequency spectra as a probe of radial propagation sectors beyond area law and null capture.
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Greybody Factor, Resonant Frequencies, and Entropy Quantization of Charged Scalar Fields in the Kerr-EMDA Black Hole
Charged scalar perturbations on Kerr-EMDA black holes admit exact confluent Heun solutions, producing universal imaginary frequency spacing of 1/(2M) and dilaton-dependent entropy quanta, with closed-form greybody factors in massless limits.
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Scalar absorption beyond geometric optics in Klein-Gordon-separable Johannsen black hole spacetimes
Derives partial-wave scalar absorption in Klein-Gordon separable Johannsen spacetimes and identifies finite-frequency spectra as a probe of radial propagation sectors beyond area law and null capture.