Vendredi 19 juin 2015 à 14h15
Auditoire Stueckelberg, Ecole de Physique

Topological invariants for periodically driven crystals

Krzysztof Gawedzki, Laboratoire de Physique, ENS Lyon

I shall review a construction of topological indices extending the Chern and, in particular, Kane-Mele invariants to periodically driven lattice systems. Such constructions permit also a new look on the static invariants. Based on joint works PRL 114, 106806 and arXiv:1503.04157.