Niklas, Michael and Benito, Monica and Kohler, Sigmund and Platero, Gloria (2016) Transport, shot noise, and topology in AC-driven dimer arrays. NANOTECHNOLOGY, 27 (45): 454002. ISSN 0957-4484, 1361-6528
Full text not available from this repository. (Request a copy)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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM DOTS; SUPERLATTICES; PHASE; BANDS; SPIN; quantum transport; topology; time dependent quantum systems |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Apr 2019 10:39 |
| Last Modified: | 12 Apr 2019 10:39 |
| URI: | https://pred.uni-regensburg.de/id/eprint/3954 |
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