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School and workshop on Global Categorical Symmetries
27 Aug 2023 - 08 Sep 2023 • Les Diableret, Switzerland
Abstract:
From a modern point of view, quantum field theory associates to every symmetry a topological defect, which acts on local and extended observables. This understanding has recently led to the discovery of new higher notions of symmetry, which in turn has shed new light on some of the most mysterious and profound phenomena described by quantum field theory, including color confinement in non-abelian gauge theories and duality. The deep link between symmetry and topology finds its natural expression in the mathematics of topological quantum field theory, such as the modular tensor categories that describe invariants of knots and the long-distance physics of anyons. Recent advances have centered on the rich categorical structure of various defects and how it encodes the fundamental idea of locality, as expressed by the cobordism hypothesis.
Event listing ID:
1545784


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Last updated: 21 February 2023