6 papers
Spin-mediated modulation of chaos bound violation in Lorentz-violating black hole spacetimes
Deyou Chen, Chuang Yang, Bingbing Chen
We investigate how the particle spin modulates chaos bound violations in Lorentz-violating black hole spacetimes within the framework of Bumblebee gravity. Using the Mathisson-Papa…
Chaos bound for spinning particles in Kerr-Newman-AdS black holes
Deyou Chen, Chuang Yang, Kangqiao Liu
In this paper, we employ spinning test particles as probes to investigate the regulatory effects of particle and black hole parameters on the violation of the chaos bound in Kerr-N…
Unveiling Inner Shadows and Polarization Signatures of Rotating Einstein-Gauss-Bonnet Black Holes
Bing-Bing Chen, Chen-Yu Yang, Deyou Chen +1
Based on the backward ray-tracing method, this paper numerically investigates the shadow and polarization images of rotating Einstein-Gauss-Bonnet (EGB) black hole within the frame…
Motions of spinning particles and chaos bound in Reissner-Nordström spacetime
Chuang Yang, Deyou Chen, Yongtao Liu
Previous research showed that the chaos bound proposed in \cite{MSS} can be violated under specific conditions within the scalar fields surrounding black holes. In this paper, we e…
Lyapunov exponents, phase transition and chaos bound in Kerr-Newman AdS spacetime
Chuang Yang, Chuanhong Gao, Deyou Chen +1
In this paper, we investigate Lyapunov exponents associated with chaotic motions of both massless and massive particles in the vicinity of a Kerr-Newman AdS black hole. Our explora…
Lyapunov exponents as probes for a phase transition of a Kerr-AdS black hole
Deyou Chen, Chuang Yang, Yongtao Liu
In this letter, we study proper time Lyapunov exponents and coordinate time Lyapunov exponents of chaos for both massless and massive particles orbiting a four-dimensional Kerr-AdS…