4 papers
Warm and Cold Dark Matter in Bouncing Universe
Changhong Li
Being free from the initial singularity, bouncing cosmology serves as a promising alternative to inflation. However, the entropy production during the post-bounce phase is still un…
MeV Dark Matter in light of the Small Scale Crisis
Changhong Li
The small-scale crisis is one of the most outstanding puzzles in modern cosmology and astrophysics. It may imply a suppression of matter perturbation at small scale. In this work,…
Primordial Perturbation of Dark Matter as a Novel Probe of Very Early Universe
Changhong Li
Dark matter(DM) is the only possible candidate which would be apart from the thermal equilibrium before Big Bang nucleosynthesis(BBN) in accordance with current DM searches. In thi…
Magnetized quark matter with a magnetic-field dependent coupling
Chang-Feng Li, Li Yang, Xin-Jian Wen +1
It was recently derived that the QCD running coupling is a function of the magnetic field strength under the strong magnetic field approximation. Inspired by this progress and base…