title: Transport, shot noise, and topology in AC-driven dimer arrays.
abstract: We analyze an AC-driven dimer chain connected to a strongly biased electron source and drain. It turns out that the resulting transport exhibits fingerprints of topology. They are particularly visible in the driving-induced current suppression and the Fano factor. Thus, shot noise measurements provide a topological phase diagram as a function of the driving parameters. The observed phenomena can be explained physically by a mapping to an effective time-independent Hamiltonian and the emergence of edge states. Moreover, by considering quantum dissipation, we determine the requirements for the coherence properties in a possible experimental realization. For the computation of the zero-frequency noise, we develop an efficient method based on matrix-continued fractions.
authors.affiliation: Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Niklas
authors.forename: Mónica
authors.initials: M
authors.lastname: Benito
authors.forename: Sigmund
authors.initials: S
authors.lastname: Kohler
authors.forename: Gloria
authors.initials: G
authors.lastname: Platero