JC on CFTs, defects & related topics
Hello, stranger 👻 our meetings are online and currently happening on Tuesdays at 5pm (CET)
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Hello, stranger 👻 our meetings are online and currently happening on Tuesdays at 5pm (CET)
If you would like to attend, please subscribe to the mailing list at the bottom of the page!
Future talks
11/02/25
Title: Topological defects in Chern-Simons theory and 3d gravity
Abstract: Topological defects defy our conventional understanding of what symmetries are. Known topological surface defects are however mostly confined to discrete or Abelian continuous and compact groups. We construct a new class of topological defects in the Chern Simons theory with non-Abelian, non-compact gauge groups. This new class of defects are characterised by a solution of the so-called modified-classical Yang-Baxter equation. This particularity enables us to compute their fusion using Lagrangian correspondences, rather than using a purely categorical approach. Finally, turning defects into boundaries produces a set of asymptotically-AdS spaces that generalises to higher spin gravity. This is work with A.S. Arvanitakis, L.T. Cole, and D.C. Thompson.
References: arXiv:2412.11718 [hep-th]
Past talks