Chiral one-dimensional Floquet topological insulators beyond the rotating wave approximation
| Autor: | Clara S. Weber, Herbert Schoeller, Niclas Müller, Daniel Loss, Fabian Hassler, Dante M. Kennes, Jelena Klinovaja, Christoph Bruder, Mikhail Pletyukhov |
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| Rok vydání: | 2019 |
| Předmět: |
Floquet theory
Physics Chiral symmetry Frequency space 02 engineering and technology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology 01 natural sciences symbols.namesake Topological insulator Quantum mechanics 0103 physical sciences symbols Rotating wave approximation 010306 general physics 0210 nano-technology Bilayer graphene Hamiltonian (quantum mechanics) Phase diagram |
| Zdroj: | Physical Review B. 100 |
| ISSN: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.100.041103 |
| Popis: | We study one-dimensional 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. |
| Databáze: | OpenAIRE |
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