CMSA Mathematical Physics Seminar: Networks and quantization


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April 12, 2021 10:00 am - 11:00 am
via Zoom Video Conferencing

Fei Yan - Rutgers University

I will describe two quantization scenarios. The first scenario involves the construction of a quantum trace map computing a link "invariant" (with possible wall-crossing behavior) for links L in a 3-manifold M, where M is a Riemann surface C times a real line. This construction unifies the computation of familiar link invariant with the refined counting of framed BPS states for line defects in 4d N=2 theories of class S. Certain networks on C play an important role in the construction. The second scenario concerns the study of Schroedinger equations and their higher order analogues, which could arise in the quantization of Seiberg-Witten curves in 4d N=2 theories. Here similarly certain networks play an important part in the exact WKB analysis for these Schroedinger-like equations. At the end of my talk I will also try to sketch a possibility to bridge these two scenarios.