3 papers
gr-qc2026
Massless scalar scattering by Kerr-Bertotti-Robinson black holes:transparent-end channels and superradiance
Hai Huang, Xudong Sun, Juhua Chen
We formulate and numerically solve the real-frequency scattering problem for a neutral, minimally coupled, massless scalar on the rotating Kerr--Bertotti--Robinson (Kerr--BR) black…
gr-qc2026
Thermodynamical phase structures and particle emission rate of charged AdS black hole surrounded by string cloud and quintessence via shadow formalism
Yunxiang Wang, Hongyu Chen, Juhua Chen +1
In this paper, the shadow of the four-dimensional charged AdS black hole surrounded by string cloud and quintessence is derived. The shadow radius shows a strictly monotonic and in…
gr-qc2026
Scattering and absorption of a charged massive scalar field by a Reissner-Nordström black hole surrounded by perfect fluid dark matter
Hai Huang, Xudong Sun, Juhua Chen
We study the scattering of charged massive particles impinging on a Reissner-Nordström (RN) black hole immersed in perfect fluid dark matter (PFDM). We obtain an approximation of…