8 papers
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…
Full spectrum of Love numbers of Reissner-Nordstrom black hole in D-dimensions
Minghao Xia, Liang Ma, Yi Pang +1
We present a comprehensive analysis of the full spectrum of tidal Love numbers for Reissner-Nordström (RN) black holes in general spacetime dimensions. By perturbing the Einstein-…
Quadratic Curvature Correction to 5D Myers-Perry Metric
Liang Ma, H. Lu
We consider quadratic curvature perturbation to the Myers-Perry black hole in five dimensions at the linear level in the coupling constant. The solution can then be solved order by…
Instanton Moduli, Topology and the Bosonic/Heterotic String Origins
Liang Ma, H. Lu
We construct new supersymmetric NS(-1)-branes supported by the 't Hooft instantons in , supergravity. We show that although the magnetic 3-for…
Leading Higher Derivative Corrections to Multipole Moments of Kerr-Newman Black Hole
Liang Ma, Yi Pang, H. Lu
We study the (leading) 4-derivative corrections, including both parity even and odd terms, to electrically-charged Kerr-Newman black holes. The linear perturbative equations are th…