Physics

I will describe recent work explaining how several paradoxical features of bulk locality in AdS/CFT can be explained by interpreting the CFT as a quantum error correcting code. Time permitting I will also present an explicit discrete model of this...

I describe work with Stefan Hollands that establishes a new criterion for the dynamical stability of black holes and black branes with respect to axisymmetric perturbations. Our analysis is done in vacuum general relativity without cosmological...

In this talk I review the holographic dual of an entangled pair of a quark and an anti-quark. The bulk dual on the Poincare patch is a string with an Einstein-Rosen bridge on its worldsheet. String solutions will be discussed that correspond to...

Solutions of string/M theory with low energy supersymmetry breaking generically have light moduli fields whose masses are of order the supersymmetry breaking scale. These fields -- whose expectation values parametrise the size and shape of the...

Argyres-Douglas theories are four-dimensional N=2 SCFTs characterized by the existence of mutually non-local massless BPS states. The original examples of these theories were discovered almost twenty years ago at special points of the Coulomb branch...

I will review progress and questions originating from an attempt to quantize pure gravity on AdS3 by using canonical quantization in a "constrain first" approach. Questions will outnumber answers.

Conformal field theories (CFTs) defined at fixed points of the
renormalization group flow can be lifted to curved space where they develop
the well-known trace anomaly. In this talk we will consider the trace
anomaly of CFTs with exactly marginal...