BIMSA > BIMSA Lecture Functional Separation of Variables
Functional Separation of Variables
Organizer
Andrii Liashyk
Speaker
Paul Ryan
Time
Friday, June 13, 2025 3:00 PM - 4:00 PM
Venue
A3-4-301
Online
Zoom 435 529 7909 (BIMSA)
Abstract
I will describe the recently developed Functional Separation of Variables (FSoV) technique for computing correlation functions in integrable systems. Unlike the various incarnations of the Bethe ansatz this approach allows to extract correlation functions directly from the famous Baxter TQ equation. As such it is applicable even without the presence of a pseudovacuum. I will demonstrate the power of this approach on the example of the integrable spin chains coming from the Yangian of $gl(n)$.
Speaker Intro
Paul Ryan works both on mathematical aspects of integrable systems and their application to gauge and string theory. He received his PhD from Trinity College Dublin in 2021. From 2021 - 2024 he was a postdoc at King's College London. Since September 2024 he is a postdoc at DESY, Hamburg.