Cosmology is an interdisciplinary subject at the intersection of astronomy and physics, which has gained great success during the last 20 years and is a very rapidly progressing research area in astronomy courses. The fundamental research question of cosmology is the origin and formation mechanism of the universe. With the help of cosmological observations, we may be able to determine the microscopic as well as macroscopic properties of fundamental interactions in the field of physics and to explore energy scales that are inaccessible to Earth experiments. The objects of cosmological research include: dark matter, dark energy, neutrino physics, and gravitational physics. The main observation windows include: cosmic microwave background radiation, galaxy surveys, time-domain astronomical observations, and multi-messenger astronomical observations. Most of the research in these directions combines astronomical observations and physical theory, and has deep intersections with galactic astronomy, gravitational wave astronomy, neutrino physics, gravitational physics, theoretical physics, and data science.

Representative Works of the Center.

[1] Jinyi Liu, Zeyang Sun, Jiakang Han, Julien Carron, Jacques Delabrouille(CPB, Berkeley) et al. Sci.China Phys.Mech.Astron. 65 (2022) 10, 109511 • e-Print: 2204.08158 [astro-ph.CO]

[2] Xiangdong Zhang and Yongge Ma, “Loop quantum Brans-Dicke cosmology”, Phys. Rev. D 87 (2013), 084024.