CMSA Quantum Matter in Mathematics and Physics Seminar: A tour of categorical symmetry


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October 7, 2021 10:30 am - 12:00 pm
via Zoom Video Conferencing

Ryan Thorngren - Harvard CMSA

I will discuss some perspectives on symmetry coming from the study of topological defects in quantum field theory. I will argue that we should take topological defects themselves to define the symmetries of QFT. This gives us a view of the "category of QFTs". I will describe some examples of these "categorical symmetries", their applications, and some open problems.

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