Transport, shot noise, and topology in AC-driven dimer arrays
arXiv:1607.00203 · doi:10.1088/0957-4484/27/45/454002
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.
8 pages, 6 figures
References in corpus (7)
- Single-shot read-out of an individual electron spin in a quantum dot
- Driven quantum transport on the nanoscale
- Franck-Condon blockade and giant Fano factors in transport through single molecules
- Irradiated graphene as a tunable Floquet topological insulator
- Chiral symmetry and bulk--boundary correspondence in periodically driven one-dimensional systems
- Landau-Zener-Stuckelberg Interferometry of a Single Electron Charge Qubit
- Bunching and anti-bunching in electronic transport