4 papers
Non-singular cosmologies matching regular black holes
Shulan Li, Jian-Pin Wu, Xian-Hui Ge
We construct a new non-singular cosmological model matched to a Minkowski-core regular black hole by means of a modified Oppenheimer--Snyder framework. Its dynamics is studied in b…
Zeno's paradox and black hole information loss problem
Xian-Hui Ge
We develop a conceptual parallel between the black hole information problem and Zeno's paradox, highlighting the role of limiting procedures that turn formally infinite constructio…
On the Replica Problem in Supersymmetric SYK Models
Xian-Hui Ge, Chenhao Zhang
We investigate the replica problem for Sachdev-Ye-Kitaev (SYK) models. First, we consider replicas of the non-supersymmetric SYK model, finding that this -replica model is s…
Quasi-Normal Modes and Nonlinear Electrodynamics in Black Hole Phase Transitions
Zi-Yu Hou, Yu-Qi Lei, Xian-Hui Ge
We investigate the connection between thermodynamic phase transitions and quasi-normal modes (QNMs) in charged black holes with a positive curvature constant, within the framework…