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Future studies of dark matter (DM) will be interdisciplinary, which include cosmological and astrophysical constraints, indirect signals and direct detections. A synergy study of DM consistently with all those channels is the key to robust physics of DM. By overviewing the evidence for the DM hypothesis, I first discuss some cosmological and astrophysical probes for “model independent” DM properties, such as the “coldness” and interactions. The often-considered DM candidates, e.g., WIMP and ALP, are in tension with observations, which motivates new proposals for DM. I will talk about a recently proposed B-L gauge. The model consistent with cosmological constraints predicts a nontrivial neutrino signal potentially detectable in the future with low-energy neutrino experiments. In addition, remarks will be given on several cosmological anomalies and their DM origins. In the future, small-scale dwarf systems and the cosmic dawn are promising for DM properties searches due to their less contaminations.
Weikang Lin is a Tsung-Dao Lee Prize Postdoctoral Fellow at the Tsung-Dao Lee Institute, Shanghai Jiao Tong University. He obtained his Ph.D in cosmology from the University of Texas at Dallas, master in nuclear astrophysics from Texas A&M University-Commerce, and bachelor from South China University of Technology. Before returning to China, he moved to Raleigh, NC for his first postdoc at North Carolina State University. His main research interest is cosmology but is highly interested in interdisciplinary studies. His recent research includes the Hubble tension, dark energy and dark matter as well as methods to quantify inconsistencies among observations.