19/12/2012, 11:30 — 12:30 — Room P4.35, Mathematics Building
Sara Tavares, Univ. of Nottingham
Observables in 2D BF theoryBF theory in two dimensions has been the subject of intensive study in the last twenty five years. I will readdress it by highlighting the TQFT interpretation of the spinfoam approach to its quantisation. I will also introduce the mathematical model that allows us to treat surfaces with inbuilt topological defects and how we expect them to relate to operators in the quantum field theory.