GP2 - Birmingham Workshop Program: Topological Gauge Structures in Cayley-Schreier Lattices

Session Information

Location: Physics West 117 | School of Physics and Astronomy, University of Birmingham
Day: 1. Tuesday 21st April
Time: 11:40-12:20
Chairperson: Cristiane Morais-Smith

Presentation Details

Presentation Type: Oral | Invited
Title: Topological Gauge Structures in Cayley-Schreier Lattices
Abstract: Recently, constructions known as Cayley-Schreier lattices have been suggested as a platform for realizing arbitrary gauge fields in synthetic crystals with real hopping amplitudes. In our work, we show that Cayley-Schreier lattices can naturally give rise to lattice systems that incorporate non-Abelian gauge structures transforming into a space-group symmetry. We show that its symmetry sectors can be interpreted as blocks of pseudospin models—some of which correspond to true spinors—that can realize a wealth of different topological invariants in a single setup. We underpin these general results with concrete models and show how they can be implemented in current experimental platforms.

Presenter

Prof Tomáš Bzdušek
University of Zurich | Switzerland

Authors

1. Guba, Zoltán | University of Zurich
2. Slager, Robert-Jan | University of Manchester
3. Upreti, Lavi K. | University of Zurich
4. Bzdušek, Tomáš | University of Zurich