2 papers
gr-qc2026
Third type of spacetime with the coexistence of integrability and non-integrability
Junjie Lu, Xin Wu
The integrability or non-integrability of a spacetime usually refers to whether the motion of massive or massless particles in the spacetime is integrable or not. The standard blac…
gr-qc2025
Chaos of charged particles near a renormalized group improved Kerr black hole in an external magnetic field
Junjie Lu, Xin Wu
In a quantum theory of gravity, a renormalization group improved Kerr metric is obtained from the Kerr metric, where the Newton gravitational constant is modified as a function of…