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arXiv · 1206.3315

Modulated Floquet Topological Insulators

Yaniv Tenenbaum Katan·Daniel Podolsky
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Abstract

Floquet topological insulators are topological phases of matter generated by the application of time-periodic perturbations on otherwise conventional insulators. We demonstrate that spatial variations in the time-periodic potential lead to localized quasi-stationary states in two-dimensional systems. These states include one-dimensional interface modes at the nodes of the external potential, and fractionalized excitations at vortices of the external potential. We also propose a setup by which light can induce currents in these systems. We explain these results by showing a close analogy to px+ipy superconductors.

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Yaniv Tenenbaum Katan, Daniel Podolsky. 2013-03-26. Modulated Floquet Topological Insulators. https://doi.org/10.1103/physrevlett.110.016802

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