Time: 2pm
Place: 2N36
Title: F-Theorem and the Epsilon Expansion
Abstract:
I will discuss the dimensional continuation of the sphere free energy in conformal field theory. This provides an interpolation between a-anomaly coefficients in even dimensions and F-values in odd dimensions, and smoothly connects the existing a-theorems and F-theorems. As concrete applications, I will explain how to use the Wilson-Fisher epsilon expansion to find the value of F for the 3d Ising CFT and related O(N) symmetric models, and for the conformal phase of the 3d QED with N_f massless fermions.
Date of event:
Mon, 2015-11-23 (All day)
