"Causality and Universality at Strong Coupling," by Tom Hartman (Cornell)

Wednesday, April 5, 2017 - 11:00am to 12:00pm
TEP Seminars

Special TEP Seminar

Physics & Astronomy Building (PAB) Room 4-330
Wednesday, April 5, 2017
11 AM - 12 PM

Guest Speaker: Tom Hartman (Cornell)​

Talk Title: "Causality and Universality at Strong Coupling"


Causality imposes constraints on perturbative effective field theory, which have played a role in understanding scattering amplitudes, the a-theorem for renormalization group flows, and higher curvature corrections in quantum gravity. I will describe similar constraints on strongly interacting theories. In one limit, these constraints imply the averaged null energy condition, which links causality to the inequalities obeyed by quantum information. Then, in large-N conformal field theory, I'll describe how causality tightly constrains the stress tensor correlation functions, and points directly toward the emergence of Einstein gravity in the holographic dual.

Event Attachments: 
PAB 4-330