Afterward he served as professor at Beijing University, the University of Michigan and Columbia University, as director of the National Research Council of Canada's theoretical physics team, and as head of New York State University's physics department.
之後曾任北京大學、密西根大學、哥倫比亞大學等校教授、加拿大國家研究院理論物理組主任及美國紐約州立大學水牛城分校物理學系主任等職。