Department of Physics & Astronomy
University of New Mexico

OSE Seminars

Topologically Protected Edge States on Quasicrystals

Presented by Professor Terry A. Loring, The Department of Mathematics & Statistics, UNM

Topological insulators, topological superconductors and photonic topological systems are of interest predominantly because of the robustness of their edge states. The mathematics behind this robustness, called K-theory, generally relies on some periodicity that enables the construction of some variation on momentum space. I will present a simple method to introduce a form of K-theory into any problem involving approximately compatible observables. This can be used to validate the robustness of the edge states on various model systems built on quasicrystals.

11:00 am, Thursday, August 25, 2016
PAIS-2540, PAIS

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