String Math Seminar: Elise LePage (UCB) “Aganagic’s invariant is Khovanov homology”
abstract: In recent work, Aganagic proposed a categorification of quantum link invariants using Lagrangian Floer theory in multiplicative Coulomb branches equipped with a potential. The braid group action arises from monodromy of this potential. We show that in the case g=sl(2), this braid group action agrees with the braid group action constructed by Webster, which proves that Aganagic’s proposal gives … Read More
Anna Biggs (Princeton) “A melonic quantum mechanical model without disorder”
Abstract: I will describe a quantum mechanical model involving N interacting fermions without disorder that has a large N melonic expansion. In particular, it has the same Schwinger-Dyson equations and low energy physics as the \mathcal{N} = 2 supersymmetric SYK model. The model is SU(2) invariant, and the supercharge involves the SU(2) 3j symbol. I will conceptually explain why the … Read More