BIMSA > BIMSA Integrable Systems Seminar Spin-s Q-systems: Twist and Open Boundaries
Spin-s Q-systems: Twist and Open Boundaries
Organizers
Andrii Liashyk , Nicolai Reshetikhin , Ivan Sechin , Andrey Tsiganov
Speaker
Jie Hou
Time
Tuesday, March 18, 2025 4:00 PM - 5:00 PM
Venue
A6-101
Online
Zoom 873 9209 0711 (BIMSA)
Abstract
In this talk, I will explore the eigenvalue problem of integrable spin chains using the Bethe ansatz. I will begin with a review of the rational Q-system, a powerful tool for solving Bethe equations. Then, I will demonstrate how Bethe solutions evolve under twist boundaries. Most importantly, I will highlight our key findings: the discovery of hidden symmetries and magnetic strings under specific open boundary parameters. These novel phenomena provide new insights into the interplay between symmetries and boundary conditions.