7 papers
A Universal Framework for Horizon-Scale Tests of Gravity with Black Hole Shadows
Wentao Liu, Yang Liu, Di Wu +1
In this Letter, we have developed a numerically efficient framework for evaluating parameters in metric theories of gravity, and applied it to constrain the horizon-scale magnetic…
Macroscopic Optical Nonreciprocity: A Black Hole as an Optical Diode
Wentao Liu, Di Wu, Xiongjun Fang +2
Optical reciprocity--the principle that light retraces the same path when source and detector are interchanged--is a foundational concept in geometric optics. In this Letter, we de…
Lorentz violation signatures in the low-energy sector of HoÅava gravity from black hole shadow observations
Wentao Liu, Hongxia Huang, Di Wu +1
In this paper, we use the HoÅava gravity model and EHT observations of supermassive black holes (BHs) to investigate signatures of Lorentz violation in real astrophysical environm…
Thermodynamic topological classes of the rotating, accelerating black holes
Wentao Liu, Li Zhang, Di Wu +1
In this paper, we investigate the topological numbers for the rotating, accelerating neutral black hole and its AdS extension, as well as the rotating, accelerating charged black h…
Light rings and shadows of static black holes in effective quantum gravity II: A new solution without Cauchy horizons
Wentao Liu, Di Wu, Jieci Wang
Among the three known types of static solutions proposed within the Hamiltonian constraint approach to effective quantum gravity (EQG), the first two have been extensively investig…
Universal thermodynamic topological classes of rotating black holes
Xiao-Dan Zhu, Wentao Liu, Di Wu
In a recent study, Wei et al. [Phys. Rev. D 110, L081501 (2024)] proposed a universal classification scheme that interprets black hole solutions as topological defects within the t…