4 papers
Restoring cosmological concordance with axion-like early dark energy and dark matter characterized by a constant equation of state?
Yan-Hong Yao, Xin-He Meng
The Hubble tension persists as a challenge in cosmology. Even early dark energy (EDE) models, initially considered the most promising for alleviating the Hubble tension, fall short…
CPL effective dark energy from the backreaction effect
Yan-Hong Yao, Xin-He Meng
In this paper, we interpret the dark energy as an effect caused by small scale inhomogeneities of the universe with the use of the spatial averaged approach of Buchert. The model c…
Observational constraints on noncold dark matter and phenomenological emergent dark energy
Yan-Hong Yao, Jun-Chao Wang, Xin-He Meng
It is well known that there are several long-standing problems implying the discordance of the CDM model. Although most of the models proposed to resolve these problems assume…
Can interacting dark energy with dynamical coupling resolve the Hubble tension
Yan-Hong Yao, Xin-He Meng
The tension between low- and high- redshift measurements is definitely a serious issue faced by current cosmologists since it ranges from 4 to 6. To relieve this tens…