Topological insulators via coarse geometry

25.10.2022, 13:00  –  Campus Golm, Haus 9, Raum 2.22 + Zoom
Öffentlicher Vortrag

Matthias Ludewig (Uni Regensburg)

Topological insulators are certain materials or metamaterials featuring a topological non-triviality in their mathematical description. This feature typically manifests as a non-trivial class in the K-theory of a suitable algebra of observables. We give an introduction to a coarse geometric approach to this topic that emerged quite recently, where so-called Roe algebras function as the underlying observable algebras. We explain several recent results, mostly joint with Guo Chuan Thiang, and highlight some directions of future research.

Aufgrund der eingeschränkten Präsenzteilnehmerzahl wird der Vortrag auch über ZOOM übertragen.

Meeting ID: 664 2949 7403 Für Passcode bitte Sylke Pfeiffer (sypfeiffer@uni-potsdam.de) kontaktieren.