Physics

High Energy Theory Seminar

February 09, 2015 | 2:30pm - 4:00pm

We show that in 2d CFTs at large central charge, the coupling of the stress tensor to heavy operators can be re-absorbed by placing the CFT in a non-trivial background metric. This leads to a more precise computation of the Virasoro conformal blocks...

High Energy Theory Seminar

February 06, 2015 | 1:45pm - 3:00pm
The cusp anomalous dimension is an ubiquitous quantity in four-dimensional gauge theories. It governs the dependence of a cusped Wilson loop on the ultraviolet cut-off and appears in many physical quantities. In particular, it controls the infrared...

High Energy Theory Seminar

January 26, 2015 | 2:30pm - 4:00pm

Topological Superconductivity is a topic of current interest because of its potential for providing a new method for storing and manipulating quantum information. One of the most basic consequences of topological superconductivity is the fractional...

High Energy Theory Seminar

January 23, 2015 | 1:45pm - 3:00pm

I will discuss the recent application of the conformal bootstrap program to superconformal field theories (SCFTs) in 3d, focusing on maximally supersymmetric theories. In particular, the constraints from unitarity and crossing symmetry on the 4...

High Energy Theory Seminar

December 12, 2014 | 1:30pm - 3:00pm

A candidate description for a strange metal phase in 1+1 dimensions,
namely a model of strongly-coupled fermions in the adjoint representation of
SU(N) is considered. It is known that such models at high densities flow
to IR WZNW theories having an...

High Energy Theory Seminar

December 01, 2014 | 2:30pm - 3:30pm

Relevant, and marginal deformations play a crucial role in studying conformal field theories. In this talk I will classify such deformations for supersymmetric conformal field theories.