Nordita HEP Local Seminars
Surface defects in four-dimensional superconformal theories and chiral algebras
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Europe/Stockholm
Fysikum equipment
Fysikum equipment
Topic: Nordic remote HET seminar
Time: Apr 2, 2020 02:00 PM Amsterdam, Berlin, Rome, Stockholm, Vienna
Join Zoom Meeting
https://stockholmuniversity.zoom.us/j/517847975
Meeting ID: 517 847 975
Description
We study BPS surface defects in 4d superconformal field theories and show how symmetries constrain their anomaly coefficients. Focusing on N=(2,2) surface defects we review the protected subsector captured by a two-dimensional chiral algebra. We study the properties of the defect in this subsector and discuss how to compute the aforementioned anomaly coefficients.