Who: Valerio Peri, ETH Zurich, Switzerland
Place: Online Seminar, Donostia International Physics Center
Date: Friday, 9 April 2021, 12:00
Symmetries crucially underlie the classification of topological phases of matter. Recent theoretical works unveiled that crystalline symmetries can stabilize fragile Bloch bands that challenge our very notion of topology: although they answer to the most basic definition of topology, one can trivialize these bands through the addition of trivial Bloch bands. Here, we present the experimental characterization of a fragile topological insulator in an acoustic metamaterial.
Host: Dario Bercioux