9 citations · 23 across the 20 of their papers we have counts for
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Black holes with dark matter halos and a positive cosmological constant: Energy conditions and signatures
Long-Yue Li, Li-Ming Cao, Yungui Gong +3
We study static, spherically symmetric black holes surrounded by dark matter halos in the presence of a positive cosmological constant. Assuming vanishing radial pressure, we deriv…
On the Extended Kerr-Newman-Bertotti-Robinson Spacetime: Two Black Holes and a Naked Singularity in Bertotti-Robinson Universe
Yu-Sen Zhou, Wen-Tao Fu, Li-Ming Cao +1
We introduce new coordinates that extend the Kerr--Newman--Bertotti--Robinson spacetime consistently with the previous reciprocal continuation. In these coordinates, the two points…
Global structure and stability of Kerr-Bertotti-Robinson spacetime
Yu-Sen Zhou, Liang-Bi Wu, Ming-Fei Ji +3
The surface of the Kerr-Bertotti-Robinson spacetime is not a genuine boundary. We construct its natural analytic extension and show that of one KBR region is…
Notes on Kerr-Bertotti-Robinson Spacetime
Yu-Sen Zhou, Liang-Bi Wu, Ming-Fei Ji +3
The surface of the Kerr--Bertotti--Robinson (KBR) spacetime is not the collection of the endpoints of infinitely extended light rays, and the Coulomb type component of g…
Exceptional lines of Reissner-Nordström-de Sitter black hole surrounded by a thin shell of matter
Liang-Bi Wu, Yu-Sen Zhou, Ming-Fei Ji +3
We study the exceptional line (EL) in the quasinormal modes (QNMs) of Reissner-Nordström-de Sitter black hole surrounded by a static thin shell of matter. For a conformally scalar…
The entropy of dynamical black holes deviating from electrovacuum in second order
Wen-Tao Fu, Ming-Fei Ji, Yu-Sen Zhou +1
We study the entropy of dynamical black holes in Einstein--Maxwell theory. Starting from a stationary electrovacuum background with a bifurcate Killing horizon, the apparent horizo…
The entropy of black hole under second-order deviation from equilibrium
Wen-Tao Fu, Ming-Fei Ji, Yu-Sen Zhou +1
We investigate the entropy of a dynamical black hole arising from second-order perturbations of a general stationary background with a bifurcate Killing horizon. Using Gaussian nul…
Decay criteria for asymptotic freedom in plane gravitational waves
Qi-Liang Zhao, Li-Ming Cao
We investigate when plane-wave memory admits standard outgoing free data beyond the idealized sandwich-wave approximation. For a Brinkmann plane wave with profile , the commo…
Virtual absorption modes of Schwarzschild-de Sitter spacetimes in semi-open systems
Liang-Bi Wu, Yu-Sen Zhou, Zhe Yu +3
We present a study of virtual absorption modes (VAMs) in Schwarzschild-de Sitter (SdS) spacetime under semi-open boundary conditions, where the VAMs correspond to total transmissio…
Signatures of the Israel Junction II: Double Photon Rings in Slowly Rotating Kerr Spacetime with Thin Shell
Long-Yue Li, Li-Ming Cao, Yungui Gong +2
Applying the junction conditions to the slowly rotating Kerr spacetime with a thin shell, when higher order terms in the spin parameter a can be neglected, we find that while the a…