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

            CAS Key Laboratory of Theoretical Physics

            Institute of Theoretical Physics

            Chinese Academy of Sciences

             Seminar

            Title

            題目

            Loop operators in three-dimensional N=2 fishnet theories

            Speaker

            報告人

            吳俊寶

            Affiliation

            所在單位

            天津大學

            Date

            日期

            2:00pm, Nov 17, 2020, Tuesday

            Venue

            地點

            騰訊會議 ID:201 931 732

            Contact Person

            所內聯系人

            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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