Speaker: Tom Melia (Kavli IPMU)
Title: Constructing a (conformally organised) basis of operators in QFT
Date (JST): Thu, Jan 25, 2018, 15:30 - 17:00
Place: Seminar Room A
Abstract: An operator basis in a QFT captures the outcome of all possible physical experiments. However, constructing a basis is not easy. I will describe a polynomial ring construction using what are known as momentum spinor-helicity variables, and how the conformal algebra can be used to organise the basis. ‘Primary’operators (annihilated by special conformal generator) play a special role; they have support on a Steifel manifold, and I'll describe what we so far understand about their explicit construction. I'll also talk about things I don't yet understand (or at least can only get at via computationally difficult methods).