Tue, April 21, 2026
1:50 pm - 2:45 pm
Math Tower (MW) 154
Yifan Wang
New York University
Title
Extraordinary Surface Criticalities for Interacting Fermions
Abstract
Interacting fermions exhibit a rich landscape of surface defects and associated critical phenomena. We investigate novel surface critical behavior in the three-dimensional Gross-Neveu-Yukawa model. For a class of defect renormalization group flows, we obtain exact infrared solutions and show how fermionic anomalies are encoded in the resulting surface dynamics. We also comment on emergent topological and geometric structures in the defect coupling space.