56 citations · 227 across the 24 of their papers we have counts for
25 papers
Schwarzschild Black Hole in Uniform Magnetic Field in Einstein-Maxwell-Dilaton Theories
Liang Ma, Peng-Yu Wu, H. Lu
We obtain the Kerr black hole in an external uniform magnetic field in the Kaluza-Klein (KK) theory via a standard solution-generating technique. Using this as our starting point,…
New Rotating Black Hole in Electromagnetic Fields: Cosmological Horizon without Cosmological Constant
Liang Ma, H. Lu
We obtain a new electrovacuum and related background spacetime that contains a cosmological horizon supported entirely by the electromagnetic field. The local solution belongs to t…
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…
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…
Odd-dimensional Extremal Rotating Black Holes with All Equal Angular Momenta and Small Electric Charges
Qi-Yuan Mao, H. Lu
We consider Einstein-Maxwell gravity in diverse dimensions and construct the small charge perturbation to the extremal rotating black holes with all equal angular momenta in odd $D…
Black Hole Thermodynamics without Black Hole Solutions
Meng-Nan Yang, Guan-Yi Lu, H. Lu
We consider the string-theory inspired Einstein-Maxwell-Maxwell-dilaton theory (EMMD) and show that we can derive the complete set of thermodynamic quantities of charged black hole…
Instanton Moduli, Topology and the Bosonic/Heterotic String Origins
Liang Ma, H. Lu
We construct new supersymmetric NS(-1)-branes supported by the 't Hooft instantons in , supergravity. We show that although the magnetic 3-for…
New BPS States from Bosonic/Heterotic Duality
Kai-Peng Lu, H. Lu, Liang Ma
In this paper, we consider the recently proposed bosonic/heterotic duality that relates the heterotic superstrings to the noncritical bosonic string. Although the latter is nonsupe…
Weak Cosmic Censorship Conjecture in Gedanken Experiments at All Orders
Kai-Peng Lu, Peng-Yu Wu, H. Lu
We present a systematic analysis of the Weak Cosmic Censorship Conjecture (WCCC) through Gedankenexperiments involving black hole perturbations induced by test particles. Our appro…
Consistent Warped Reduction of Heterotic Supergravity
Liang Ma, H. Lu
We find a curious duality between the bosonic sector of heterotic supergravity and the noncritical bosonic string with conformal anomaly. This allows us to map the Mink$_4\times S^…
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…
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…
A Space/Time Interchange Symmetry of Rotating AdS Black Holes in General Dimensions
Si-Yue Lu, Peng Zhao, H. Lu
We revisit the previously known local inversion symmetry of the five-dimensional Kerr-AdS metric that relates the over-rotating black hole to the under-rotating one and reinterpret…
Boosted Rotating Dyonic Strings in Salam-Sezgin Model
Liang Ma, Yi Pang, H. Lu
We show that the bosonic sector of the Salam-Sezgin gauged supergravity model possesses a -duality symmetry upon a circle reduction to . We then construct a…
Dyonic Black Strings and the Charge Lattice in Salam-Sezgin model
Liang Ma, Yi Pang, H. Lu
We obtain a class of dyonic black string solutions in 6D Salam-Sezgin model. We then calculate various thermodynamic quantities associated with this solution. Interestingly, for th…
Higher derivative contributions to black hole thermodynamics at NNLO
Liang Ma, Yi Pang, H. Lu
In an effective theory of gravity, thermodynamic quantities of black holes receive corrections from the infinite series of higher derivative terms. At the next to leading order, th…
Improved Wald formalism and First Law of Dyonic Black Strings with Mixed Chern-Simons Terms
Liang Ma, Yi Pang, H. Lu
We study the first law of thermodynamics of dyonic black strings carrying a linear momentum in type IIA string theory compactified on K3 with leading order corrections. The lo…
-corrections to Near Extremal Dyonic Strings and Weak Gravity Conjecture
Liang Ma, Yi Pang, H. Lü
We construct non-extremal dyonic string solutions in 6D minimal supergravity where the leading higher derivative corrections arise from either the type IIA string theory compactifi…
Hidden Relations of Central Charges and OPEs in Holographic CFT
Yue-Zhou Li, H. Lu, Liang Ma
It is known that the central charges in four-dimensional CFTs are linear combinations of the three independent OPE coefficients of the stress-tensor three-point function. I…
A Correspondence between Ricci-flat Kerr and Kaluza-Klein AdS Black Hole
Liang Ma, H. Lu
We establish an explicit correspondence of Einstein gravity on the squashed spheres that are the bundles over to the Kaluza-Klein AdS gravity on the tori. Th…
Rotating Black Holes in Einstein-Gauss-Bonnet Gravity: Mass and Angular Momentum in Extremality
Liang Ma, Yue-Zhou Li, H. Lu
We consider perturbative solutions in Einstein gravity with higher-derivative extensions and address some subtle issues of taking extremal limit. As a concrete new result, we const…
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…
Universal bounds on the size of a black hole
Run-Qiu Yang, H. Lu
For static black holes in Einstein gravity, if matter fields satisfy a few general conditions, we conjecture that three characteristic parameters about the spatial size of black ho…