"BIG J" by Simeon Hellerman (IPMU, Tokyo)

Thursday, February 26, 2015 - 10:00am to 11:00am
TEP Seminars

TEP Seminar

Physics and Astronomy Building (PAB) Room 4-708
Thursday, February 26, 2015
10-11 AM

Guest Speaker: Simeon Hellerman (IPMU, Tokyo)

Talk Title: "BIG  J"


The topic of this seminar is the simplification of strongly interacting quantum field theory at large J, where J is the quantum number of a state under some symmetry group such as angular momentum or a global charge.  As an example, I will review recent work on the simplification of the worldsheet theory of the QCD string at large angular momentum.  In particular we calculate, from first principles, the first sub-leading large J correction to the linear Regge spectrum of the mass-squared of a hadron as a function of spin J, in planar QCD with bosonic quarks.  We also discuss work in progress in which we have applied our larger theory of large-J perturbativity to more general problems in quantum field theory, such as the operator spectrum of strongly coupled fixed points in three dimensions.

PAB 4-708