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(Seminar) Loop operators in three-dimensional N=2 fishnet theories
11/17
2020
- Title (Seminar) Loop operators in three-dimensional N=2 fishnet theories
- Speaker
- Date
- Venue
Abstract
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CAS Key Laboratory of Theoretical Physics | ||
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Institute of Theoretical Physics | ||
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Chinese Academy of Sciences | ||
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Seminar | ||
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Title 题目 |
Loop operators in three-dimensional N=2 fishnet theories | |
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Speaker 报告人 |
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Affiliation 所在单位 |
天津大学 | |
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Date 日期 |
2:00pm, Nov 17, 2020, Tuesday | |
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Venue 地点 |
腾讯会议 ID：201 931 732 | |
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Contact Person 所内联系人 |
Gang Yang | |
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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. | |