Dr. Han is Associate Professor and Director of the Center for Arms Control and Disarmament at the School of International Studies (SIS), Peking University, China. She teaches courses in International Relations in South Asia, International Arms Control, Disarmament and Nonproliferation, and U.S. Politics and Foreign Policy. She is the Director for Arms Control and Disarmament in the SIS and has led programs and projects on regional nuclear nonproliferation, confidence building measures, and deep nuclear arms cuts. Dr. Han has been a Visiting Researcher at the School of International Affairs, Georgia Institute of Technology, the Stockholm International Peace Research Institute, Sweden, the Stimson Center, the Center for Nonproliferation Studies in Washington D.C. and Monterey, Victoria University, Canada, and the Peace and Conflict Institute, Uppsala University, Sweden. She has also written extensively on arms control, nonproliferation and South Asia for journals and newspapers in China and abroad.