Yifeng Liu joined the IASM as a permanent member in June 2021. He obtained his bachelor's degree from Peking University in 2007 and his doctorate from Columbia University in 2012. He was a C.L.E. Moore Instructor at MIT (2012—2015), an Assistant Professor at Northwestern University (2015—2018), an Associate Professor and then a Professor at Yale University (2018—2021) right before joining the IASM.

Yifeng's research areas include Algebraic Number Theory, Automorphic Forms, and Algebraic Geometry, especially in the arithmetic aspect of the Langlands program. He received a Sloan Research Fellowship in 2017 and was awarded the 2018 SASTRA-Ramanujan Prize shared with Jack Thorne.