Fei Yan

Entanglement entropy in (1+1)-d with defects

Discussion on 4d N=2

• Davide Gaiotto Perimeter Institute for Theoretical Physics

• Lotte Hollands Heriot-Watt University

• Joerg Teschner Deutsches Elektronen-Synchrotron DESY

• Fei Yan Rutgers University

Defects, quantum trace map, and exact WKB

Geometrical structures in 4d N=2 class S theories

Protected spin characters, link invariants, and q-nonabelianization