56 citations · 301 across the 26 of their papers we have counts for
8 papers · 1 filter
Ricci-flat Seeds, Trombone Rescaling and Magnetizing Kerr Black Holes
Liang Ma, H. Lu
We present a new family of Ricci-flat rotating metrics, which we refer to as Solution II, obtained by demagnetizing the genuine Kerr-Bertotti-Robinson (G-KBR) black hole. Together…
Global Distinctions Between New Electrovacuum and Kundt Class
Liang Ma, H. Lu
It was observed [2606.30426] that our recently constructed electrovacuum [2606.23782], supported by electromagnetic fields, can be locally transformed to a special Petrov type D so…
Demagnetizing KBR and New Ricci-flat Rotating Metric
Liang Ma, H. Lu
We construct a new Ricci-flat metric by demagnetizing the recently reported Kerr-Bertotti-Robinson (KBR) solution. The metric is a deformation of the Kerr metric characterized by a…
Charging the Love numbers: Charged scalar response coefficients of Kerr-Newman black holes
Liang Ma, Ze-Hua Wu, Yi Pang +1
We study the electrically-charged massless scalar response to the general Kerr-Newman black hole and obtain the exact (complex) response coefficients, whose real parts are the Love…
Quantum Corrections to Pair Production of Charged Black Holes in de Sitter Space
Yu-Peng Wang, Liang Ma, Yi Pang
We compute Euclidean action of charged de Sitter black holes in four dimensional gravitational Euler-Heisenberg model. It turns out that the action of a general Euclidean dyonicall…
Thermodynamics of Taub-NUT and Plebanski Solutions
Hai-Shan Liu, H. Lu, Liang Ma
We observe the parallel between the null Killing vector on the horizon and degenerate Killing vectors at both north and south poles in Kerr-Taub-NUT and general Plebanski solutions…
Vacua and Exact Solutions in Lower- Limits of EGB
Liang Ma, H. Lu
We consider the action principles that are the lower dimensional limits of the Einstein-Gauss-Bonnet gravity {\it via} the Kaluza-Klein route. We study the vacua and obtain some ex…
Bounds on Photon Spheres and Shadows of Charged Black Holes in Einstein-Gauss-Bonnet-Maxwell Gravity
Liang Ma, H. Lu
We consider spherically symmetric and static charged black holes in Einstein-Gauss-Bonnet-Maxwell gravities in general dimensions and study their photon spheres and black…