Topological edge states in periodically driven trapped-ion chains

P Nevado, S Fernández-Lorenzo, D Porras - Physical Review Letters, 2017 - APS
Physical Review Letters, 2017APS
Topological insulating phases are primarily associated with condensed-matter systems,
which typically feature short-range interactions. Nevertheless, many realizations of quantum
matter can exhibit long-range interactions, and it is still largely unknown the effect that these
latter may exert upon the topological phases. In this Letter, we investigate the Su-Schrieffer-
Heeger topological insulator in the presence of long-range interactions. We show that this
model can be readily realized in quantum simulators with trapped ions by means of a …
Topological insulating phases are primarily associated with condensed-matter systems, which typically feature short-range interactions. Nevertheless, many realizations of quantum matter can exhibit long-range interactions, and it is still largely unknown the effect that these latter may exert upon the topological phases. In this Letter, we investigate the Su-Schrieffer-Heeger topological insulator in the presence of long-range interactions. We show that this model can be readily realized in quantum simulators with trapped ions by means of a periodic driving. Our results indicate that the localization of the associated edge states is enhanced by the long-range interactions, and that the localized components survive within the ground state of the model. These effects could be easily confirmed in current state-of-the-art experimental implementations.
American Physical Society