Almost strong (0, π) edge modes in clean interacting one-dimensional Floquet systems

Journal article

Certain periodically driven quantum many-particle systems in one dimension are known to exhibit edge modes that are related to topological properties and lead to approximate degeneracies of the Floquet spectrum. A similar situation occurs in spin chains, where stable edge modes were shown to exist at all energies in certain integrable spin chains. Moreover, these edge modes were found to be remarkably stable to perturbations. Here we investigate the stability of edge modes in interacting, periodically driven, clean systems. We introduce a model that features edge modes that persist over timesscales well in excess of the time needed for the bulk of the system to heat to infinite temperatures.

Authors: Yates, D; Essler, F; Mitra, A

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: American Physical Society
• Journal: Physical Review B
• Volume: 99
• Issue: 20
• Article number: 205419
• Publication date: 2019-05-16
• Acceptance date: 2019-05-01
• DOI: 10.1103/physrevb.99.205419
• EISSN: 2469-9969
• ISSN: 2469-9950
• Language: English