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(Seminar) Loop operators in three-dimensional N=2 fishnet theories
2020-11-17  【 】【打印】【关闭

CAS Key Laboratory of Theoretical Physics

Institute of Theoretical Physics

Chinese Academy of Sciences

 Seminar

Title

题目

Loop operators in three-dimensional N=2 fishnet theories

Speaker

报告人

吴俊宝

Affiliation

所在单位

天津大学

Date

日期

2:00pm, Nov 17, 2020, Tuesday

Venue

地点

腾讯会议 ID:201 931 732

Contact Person

所内联系人

Gang Yang

Abstract

摘要

In this talk, I will describe our study on the line and loop operators in three-dimensional N= 2 fishnet theories in detail. We construct the straight line and circular loop operators which are at least classically half-BPS. We develop a new regularization scheme at frame ?1 which is suitable for the study of the fermionic BPS loops in general super-Chern-Simons theories. We initialize the perturbative computation for the vacuum expectation values of the circular BPS loop operators based on this scheme. We construct the cusped line operators as well, and compute the vacuum expectation values of these cusped line operators up to two-loop order. We find that the universal cusp anomalous dimension vanishes, if we put aside the fact that the generalized potential has a double pole in the 1/epsilon-expansion. This talk is based on work done with Jia Tian and Bin Chen.
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