Yi Peng is an associate professor at the Institute of Physics, Chinese Academy of Sciences, where he heads an interdisciplinary group researching the collective dynamics of active matter and phase transitions in colloidal crystals. He obtained his PhD in physics from the Department of Physics, Hong Kong University of Sciences and Technology, after which he did a postdoc at the Department of Chemical Engineering and Materials Sciences, University of Minnesota. In 2019, he started his research group in China to explore the origins of motility and cooperation in soft-active-matter systems.