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Quantum Symmetries in Four-dimensional Gauge Theories
12/21
2022
Seminar
- Title Quantum Symmetries in Four-dimensional Gauge Theories
- Speaker Zhang Xinyu（DESY）
- Date Dec.21, 2022 3:00pm-4:00pm
- Venue https://meeting.tencent.com/dm/WTI7aamuEYKr Tencent No.：813-857-318
Abstract
In this talk, I will discuss symmetries of four-dimensional gauge theories beyond the framework of group theory. A large class of N=2 superconformal field theories, which can be obtained from N=4 super Yang-Mills theory via orbifolding and then marginally deforming, enjoy a quantum deformation of the R-symmetry of the mother N=4 theory. The naively broken generators are not lost but upgraded to generators of a quantum groupoid, acting with a non-trivial co-product on a product of fields. We demonstrate that the Lagrangian is invariant and the spectrum organizes in representations of the quantum deformed SU(4) R-symmetry.
Contact: Wu Jieqiang