Chiral 1D Floquet topological insulators beyond rotating wave approximation
Mesoscale and Nanoscale Physics
2020-05-14 v2
Abstract
We study one-dimensional (1D) Floquet topological insulators with chiral symmetry going beyond the standard rotating wave approximation. The occurrence of many anticrossings between Floquet replicas leads to a dramatic extension of phase diagram regions with stable topological edge states (TESs). We present an explicit construction of all TESs in terms of a truncated Floquet Hamiltonian in frequency space, prove the bulk-boundary correspondence, and analyze the stability of the TESs in terms of their localization lengths. We propose experimental tests of our predictions in curved bilayer graphene.
Cite
@article{arxiv.1811.12062,
title = {Chiral 1D Floquet topological insulators beyond rotating wave approximation},
author = {Dante M. Kennes and Niclas Müller and Mikhail Pletyukhov and Clara Weber and Christoph Bruder and Fabian Hassler and Jelena Klinovaja and Daniel Loss and Herbert Schoeller},
journal= {arXiv preprint arXiv:1811.12062},
year = {2020}
}
Comments
4+9 pages