3 papers
astro-ph.CO2026
On the potential of pseudo-scalar dark energy
Andrea Minotti, Yunzhi Wu, Marco Regis
A cosmological pseudo-scalar field provides a compelling realization of dynamical dark energy (DE). If its coupling to photons is non-negligible, the cosmic microwave background ac…
astro-ph.CO2026
Cosmic Dynamics in Einstein-Cartan Theory: Analysing Hubble Tension through Curvature and Torsion field
Yun-Dong Wu, Wei Hong, Tong-Jie Zhang
The Hubble tension refers to the significant discrepancy in the Hubble constant obtained from two different measurement methods in cosmology. One method derives data from t…
astro-ph.CO2025
Exploring the Cosmological Model Degeneracy with a new evaluate factor G
Yuan-bo Xie, Yun-dong Wu, Wei Hong +1
In the context of fitting cosmological models, parameter degeneracy remains a central issue. This paper critically examines traditional methods for constraining parameters and focu…