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Anomalous Edge States and the Bulk-Edge Correspondence for Periodically Driven Two-Dimensional Systems

Mark Spencer Rudner, Netanel H. Lindner, Erez Berg, Michael Levin

📄 Abstract

When a topological insulator is “driven” by an applied electromagnetic field, its behavior cannot be predicted based on how it acts when the driving is absent. Theorists show that new conducting edge states can appear and that a new topological invariant, instead of the well-known Chern number, is needed to classify conducting edge states in driven topological insulators.

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