Dublin Institute for Advanced Studies contact@dias.ie 00353 (0) 16140100

David Tong (University of Cambridge)

Title: Chiral Boundary States for Fermions

Abstract: I’ll describe boundary conditions for fermions in d=1+1 dimensions, using the framework of boundary conformal field theory. I’ll explain how boundary states are classified by a mod 2 index, related to their SPT phase, describe how one can follow RG flows from one boundary state to another, and give a novel perspective on the Z_8 classification of d=2+1 SPT phases.

Talk – Video