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Search: authors:"Cheng-Yong Zhang"

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Thermodynamical and dynamical properties of charged BTZ black holes

We investigate the spacetime properties of BTZ black holes in the presence of the Maxwell field and Born–Infeld field and find rich properties in the spacetime structures when the model parameters are varied. Employing Landau–Lifshitz theory, we examine the thermodynamical phase transition in the charged BTZ black holes. We further study the dynamical perturbation in the background ...

Superradiant instability of Kerr-de Sitter black holes in scalar-tensor theory

Cheng-Yong Zhang 0 Shao-Jun Zhang 0 Bin Wang 0 0 Department of Physics and Astronomy, Shanghai Jiao Tong University , Shanghai 200240, China We investigate in detail the mechanism of superradiance