JiJi Fan works on particle theories, in particular, beyond Standard Model theories such as Higgs phenomenology, supersymmetry, dark matter models and signatures. Her research is at the interface between elementary particle physics, astrophysics and cosmology. It combines both theoretical model building and numerical data analyses.
Fan received her Ph. D degree in theoretical particle physics from Yale University in 2009. Then she worked as a postdoctoral researcher at Princeton University for three years and at Harvard University for one year. She moved to Brown University in 2015 as as assistant professor after spending two years as an assistant professor at Syracuse University.