6 papers
Revisiting the Lyth bound constraints on inflation from ACT DR6 results
Rui Yang, Jun Tao, Peng Wang +1
The Lyth bound asserts that the field excursion of inflaton must be sub-Planckian, thereby imposing an upper bound on the amplitude of the tensor power spectrum in inflationary sce…
Vacuum breakdown in a misaligned magnetized Kerr spacetime
Ruixin Yang, Songbai Chen, Jiliang Jing
Electron-positron () pair creation by vacuum breakdown around compact objects is believed to power high-energy astrophysical transients like gamma-ray bursts (GRBs). In…
Metric mean dimension of factor maps
Rui Yang
Metric mean dimension is a metric-depedent quantity to characterize the topological complexity of systems with infinite topological entropy. In this paper, we investigate metric me…
Effects of tidal charge on Blandford-Znajek process around braneworld black holes
Ruixin Yang, Songbai Chen, Jiliang Jing
The Blandford-Znajek (BZ) process is a pivotal mechanism to efficiently extract the energy from a rotating black hole (BH) via its plasma-filled magnetosphere in relativistic astro…
Lyapunov exponents and phase transition of charged Ads black hole in quintessence
Xiaobo Guo, Rui Yang, Yizhi Liang +1
This study investigates the phase transitions of RN-AdS black holes immersed in a quintessence field, employing Lyapunov exponents as a dynamical probe to characterize the thermody…
Black holes in gravity coupled with Euler-Heisenberg electrodynamics
Yizhi Liang, Jun Tao, Rui Yang
We investigate the scenario of black holes coupled with the Euler-Heisenberg nonlinear electromagnetic field in the framework of gravity. The black hole solutions for elec…