Connor Behan 博士学术报告
Title: Conformal defects: A bridge between local and nonlocal physics
Speaker: Conner Behan
Affiliation: ICTP South American Institute for Fundamental Research, Brazil（巴西ICTP南美洲基础研究学院）
Time: 11:00-12:00, Friday, 11th October, 2024 (UTC+8, Beijing Time)
Venue: Zoom Meeting (ID: 385 442 0225; Passcode: yauc)
Inviter: Zhijin Li（李志金）
Abstract
Realistic experimental systems often contain boundaries, interfaces and impurities which can be modelled as nonlocal operators called defects. The infrared behaviour of them can be studied using conformal field theory techniques but many technical challenges arise when implementing the conformal bootstrap for defects. I will discuss defects for a free CFT which is a non-trivial case that still allows much progress to be made. In analogy with supersymmetric CFT, these theories contain a protected sector which can be solved exactly and an unprotected sector where numerics offer the most concrete results. I will discuss progress that has been made in both of these areas over the last few years.
Speaker
Connor studies the structure of quantum field theory using methods from the bootstrap and holography. After obtaining his PhD from Stony Brook in 2019, he spent 4 years at Oxford and is currently a postdoctoral researcher in ICTP-SAIFR. He once volunteered on a farm.
The seminar will be broadcasted online by Zoom.
Interested people are free to join, without registration in advance.
The Zoom info is
URL: https://us02web.zoom.us/j/3854420225?pwd=SXY4eWJKOTBFZWJDaE16aXpTamY1QT09
Meeting ID: 385 442 0225
Passcode: yauc