Supersymmetric field theories and elliptic cohomology
- đ¤ Speaker: Daniel Berwick-Evans (University of Illinois at Urbana-Champaign)
- đ Date & Time: Tuesday 13 June 2023, 09:00 - 10:00
- đ Venue: Seminar Room 1, Newton Institute
Abstract
Since the mid 1980s, there have been hints of a deep connection between 2-dimensional field theories and elliptic cohomology. This lead to Stolz and Teichner’s conjectured geometric model for the universal elliptic cohomology theory of topological modular forms (TMF) in which cocycles are 2-dimensional supersymmetric field theories. Basic properties of these field theories lead to expected integrality and modularity properties, but the abundant torsion in TMF has always been mysterious. In this talk, I will describe deformation invariants of 2-dimensional field theories that realize some of the torsion in TMF .
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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Daniel Berwick-Evans (University of Illinois at Urbana-Champaign)
Tuesday 13 June 2023, 09:00-10:00