3 papers
gr-qc2025
Scalar superradiance in the charged black-bounce spacetimes
Zhiming Shuai, Xiangdong Zhang, Gui-Rong Liang
We numerically investigate the superradiant amplification effect of a charged scalar filed in the scattering experiment and the black hole bomb model in a charged black-bounce spac…
hep-th2025
A Cardy-like expression for charged rotating solitons and black holes
Moises Bravo-Gaete, Fabiano F. Santos, Xiangdong Zhang
This paper aims to propose a Cardy-like formula characterized by the mass, charge, and angular components of the black hole, along with their corresponding solitonic configuration,…
gr-qc2024
Hamiltonian Theory: generalizations to higher dimensions, supersymmetry and modified gravity
Norbert Bodendorfer, Konstantin Eder, Xiangdong Zhang
Loop quantum gravity in its Hamiltonian form relies on a connection formulation of the gravitational phase space with three key properties: 1.) a compact gauge group, 2.) real vari…