8 papers
Chaotic particle dynamics near a traversable wormhole throat
Xin Zhao, Xing-Kun Zhang, Ya-Peng Hu +1
This study investigates the nonlinear dynamics of a test particle near the traversable wormhole throat under an external harmonic potential. One-dimensional radial perturbation ana…
Kiselev black hole and the ultra-slow evaporating behavior
Chen-Hao Wu, Xiao Liang, Ya-Peng Hu
Kiselev solution is a metric that describes black holes immersed in a quintessence-like dark energy background. By introducing a dynamic state parameter , the Kiselev solution…
Cosmological coupled black holes immersed in dark sector
Chen-Hao Wu, Yue Chu, Ya-Peng Hu
Motivated by theoretical and observational developments of cosmological coupled black holes, we construct an exact analytical solution for a black hole immersed in an anisotropic d…
Constraints on non-canonical chaotic inflation from ACT DR6 and BICEP/Keck data
Wei Yang, Chen-Hao Wu, Ya-Peng Hu
In this study, we precisely evaluated the feasibility of the chaotic inflation model within a non-canonical kinetic framework. By applying the slow-roll approximation and imposing…
Different effects of the Lorentz and Gaussian bump functions on the formation of primordial black holes and secondary gravitational waves
Wei Yang, Yu-Xuan Kang, Arshad Ali +3
Scalar perturbations in the inflation can be amplified when the base inflation potential incorporates a local bump such as . This modifica…
Quantum anomaly triggers the violation of scaling laws in gravitational system
Ya-Peng Hu, Yu-Sen An, Gao-Yong Sun +5
Scaling laws for critical phenomena take pivotal status in almost all branches of physics. However, as scaling laws are commonly guaranteed by the renormalization group theory, sys…