Modifying properties of Chern insulators by time dependent perturbations

ORAL

Abstract

We study the quantum dynamics of topological Chern insulators in the presence a time dependent perturbation. We show that and under proper drive conditions they can be turned in to trivial insulators or insulators with a higher Chern number. We discuss signatures of such states in the context of non-adiabatic Thouless pumping. We argue that this provides a way to tune the properties of topological systems.

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Authors

  • Benjamin M. Fregoso

    Joint Quantum Institute and Condensed Matter Theory Center, University of Maryland

  • Victor Galitski

    Joint Quantum Institute and Condensed Matter Theory Center, University of Maryland, University of Maryland at College Park, University of Maryland