Address: Department of History, Peking University, Beijing 100871, China
Sep. 1984 - Jul. 1985 Visiting scholar at Sinological Institute, Leiden University
Sep. 1985 - Aug. 1993 Assistant, lecturer, and associate professor, Department of History, Peking University
Feb. 1991 - Aug. 1991 Visiting research fellow at the British Library with the British Academy K.C.Wong Fellowships
Aug. 1993 - present Professor, Department of History, Peking University
Oct. 1996 - Jan. 1997 Visiting fellow at the Council on East Asian Studies, Yale University
Jun. 1997 Visiting professor at École Pratique des Hautes Études, Paris
Dec. 2004 Visiting scholar at the School of Oriental and African Studies, London University
Jan - Mar. 2007 Visiting scholar at the Chuo University and Toyo Bunko, Japan
Mar. 2008 – present Yangzi Distinguished Professor of the Peking University
Dec. 2009 - Feb. 2010 Visiting scholar at the Kansai University, Japan.
Mar.2010 – 2017 Director of the Center for Research on Ancient Chinese History, Peking University.
April- May, 2013 Visiting Professor at the Institute of History and Philology, Academia Sinica, Taiwan.
Sep.-Oct., 2014, Visiting Professor at the Center for Research on the Asian Buddhism, Ryukoku University, Japan.
2017- Director of the Center for Research on the Silk Road and Inner Asia, Peking University.
Main Research Fields:
· Cultural exchanges between China and the West from Han to Tang dynasties Chinese history during the Sui, Tang dynasty and Five Dynasties Period
· History of Central Asia
· Dunhuang and Turfan manuscripts
· History of the Silk Road