Article thumbnail

Modulated Floquet Topological Insulators

By Yaniv Tenenbaum Katan and Daniel Podolsky

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

Topics: Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Mesoscale and Nanoscale Physics
Publisher: 'American Physical Society (APS)'
Year: 2013
DOI identifier: 10.1103/PhysRevLett.110.016802
OAI identifier: oai:arXiv.org:1206.3315

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.