2 papers
gr-qc2026
Photon rings and shadows of black holes with non-minimal couplings between curvature and electromagnetic field
Zhixiang Yin, Changjun Gao, Yun-Long Zhang
We investigate black holes with non-minimal couplings between the electromagnetic field and spacetime curvature, focusing on their event horizons, shadows, and photon rings. Such c…
astro-ph.CO2023
Exploring Interacting Dark Energy with Chaos Quantum-Behaved Particle Swarm Optimization
Zhixiang Yin, Zelin Ren, André A. Costa
Models with an interaction between dark energy and dark matter have already been studied for about twenty years. However, in this paper, we provide for the first time a general ana…