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…
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…
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…