paper

Topological Floquet Phases in Driven Coupled Rashba Nanowires

arXiv:1510.03640 · doi:10.1103/PhysRevLett.116.176401

Abstract

We consider periodically-driven arrays of weakly coupled wires with conduction and valence bands of Rashba type and study the resulting Floquet states. This non-equilibrium system can be tuned into non-trivial phases such as of topological insulators, Weyl semimetals, and dispersionless zero-energy edge mode regimes. In the presence of strong electron-electron interactions, we generalize these regimes to the fractional case, where elementary excitations have fractional charges with being an odd integer.

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