2026/02/02(Mon) -2026/02/23(Mon) 13:30 -16:00 P101會議室 1F, P101 Meeting Room
Title
2026 IoP Special Lecture Series on Anderson-Yuval-Kosterlitz renormalization-group theory
Speaker
Prof. Xinsheng Sean Ling (Brown University)Abstract
Introduction to the renormalization-group theory of Anderson-Yuval-Kosterlitz for 1D Ising model with 1/r^2 interactions.
Abstract:
The 1D Ising model with 1/r^2 interactions is believed to have a finite-temperature phase transition as argued by Dyson and Thouless using scaling arguments. There is still no exact solution to this model. The renormalization-group (RG) theory developed by Anderson and Yuval and later by Kosterlitz provides a clear physical picture of a phase transition driven by the unbinding topological defects. The same ideas were applied to 2D XY model by Kosterlitz and Thouless and led to the discovery of the Kosterlitz-Thouless transition (for which they were awarded the 2016 Nobel Prize in Physics). In this series of five lectures, Professor Sean Ling will discuss the pedagogy of the Anderson-Yuval-Kosterlitz (AYK) RG theory and will discuss new research opportunities in this area.
* This lecture series consists of five lectures, held on February 2nd, 4th, 9th, 11th, and 23rd, on Mondays and Wednesdays from 2:00 pm to 3:30 pm. For the details, please see the website.
https://indico.phys.sinica.edu.tw/event/484/
**Students are expected to have taken one year (at least one semester) of statistical mechanics course (Kerson Huang's textbook or similar) and are in command of the concepts of partition functions and thermodynamics.
*** No registration is required.
Language
演講語言 (Language): in English