IAS High Energy Theory Seminar

A fascinating feature of some gapped systems is topological order, where the system flows to a nontrivial TQFT in the infrared. The gap is often essential to the description of these phases, so it is interesting to ask what happens to them when the...

There are a few well-known ways for quantum mechanical, many-body systems to avoid coming to thermal equilibrium. For example, we know of two classes of systems -- integrable systems, and many-body localized systems -- for which conservation laws...

I will motivate and discuss the notion of dispersive sum rules in conformal field theory. They are sum rules satisfied by the OPE data of a four-point function as a consequence of conformal dispersion relations. Physically, they are a detailed...