Quantum Optics Seminar: Bulk-Edge Correspondence in the Trimer Su-Schrieffer-Heeger Model

Georgios Styliaris (MPQ):
The Su-Schrieffer-Heeger (SSH) Hamiltonian is perhaps the most basic model encompassing the key concepts of a topological insulator.

Georgios Styliaris (MPQ)
Group seminar (hybrid format: online/seminar room B2.46)
Fri 5 November 2021, 2:30 pm (MEZ)

Abstract:

The Su-Schrieffer-Heeger (SSH) Hamiltonian is perhaps the most basic model encompassing the key concepts of a topological insulator. I will give a basic introduction to the (dimer) model and its bulk-edge correspondence, i.e., the link between a winding number and the presence/absence of edge states. I will then present our recent results towards a generalized bulk-edge correspondence for the trimer SSH.

Joint work with A. Anastasiadis, G. Theocharis, and F. Diakonos