From the 1 of 14 linked papers with an AI index.
14 papers
The entropy of dynamical black holes deviating from electrovacuum in second order
Wen-Tao Fu, Ming-Fei Ji, Yu-Sen Zhou +1
The paper analyzes how the entropy of dynamical black holes in Einstein‑Maxwell theory relates to the area of their apparent horizons up to second‑order perturbations, introducing…
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…
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…
Pseudospectrum and (in)stability of black hole total transmission modes
Yu-Sen Zhou, Ming-Fei Ji, Liang-Bi Wu +1
Total transmission modes (TTMs) are modes with complex frequencies that propagate across a black hole spacetime without reflection. Recently, it is found that suitably tailored tim…
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…
Exceptional line and pseudospectrum in black hole spectroscopy
Li-Ming Cao, Ming-Fei Ji, Liang-Bi Wu +1
We investigate the exceptional points (EPs) and their pseudospectra in black hole perturbation theory. By considering a Gaussian bump modification to the Regge-Wheeler potential wi…