Periodic array of quantum rings strongly coupled to circularly polarized light as a topological insulator

Abstract

We demonstrate theoretically that a strong high-frequency circularly polarized electromagnetic field can turn a two-dimensional periodic array of interconnected quantum rings into a topological insulator. The elaborated approach is applicable to calculate and analyze the electron energy spectrum of the array, the energy spectrum of the edge states and the corresponding electronic densities. As a result, the present theory paves the way to optical control of the topological phases in ring-based mesoscopic structures.

Published version

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• Light-induced bound electron states in two-dimensional systems: Contribution to electron transport
• Theory of the Inverse Faraday Effect due to the Rashba Spin-Oribt Interactions: Roles of Band Dispersions and Fermi Surfaces
• Optically induced topological states on the surface of mercury telluride
• Structure of surface electronic states in strained mercury telluride
• On the possibility of a terahertz light emitting diode based on a dressed quantum well
• Floquet boundary states in AB-stacked graphite