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(Seminar) A New Anomaly in 2D Conformal Field Theory
2019-11-27  【 】【打印】【关闭

CAS Key Laboratory of Theoretical Physics

Institute of Theoretical Physics

Chinese Academy of Sciences

 Seminar

Title

题目

A New Anomaly in 2D Conformal Field Theory

Speaker

报告人

Yang Zhou (周洋)

Affiliation

所在单位

Fudan University

Date

日期

2:00pm, Nov 27, 2019, Wednesday

Venue

地点

福彩快3正规网站ITP South Building 6420

Abstract

摘要

Discrete symmetries do not have Noether currents, therefore how to detect the global anomaly is not obvious. In this talk we will introduce a new global anomaly for internal discrete symmetry in 2d CFTs and compute the anomaly using torus partition function with symmetry line insertions. We compare our anomaly free condition with orbifolding condition and symmetry invariant boundary state condition by focusing on minimal models and Wess-Zumino-Witten models.

Contact Person

所内联系人

Gang Yang
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