Benito, Monica and Niklas, Michael and Platero, Gloria and Kohler, Sigmund (2016) Edge-state blockade of transport in quantum dot arrays. PHYSICAL REVIEW B, 93 (11): 115432. ISSN 2469-9950, 2469-9969
Full text not available from this repository.Abstract
We propose a transport blockade mechanism in quantum dot arrays and conducting molecules based on an interplay of Coulomb repulsion and the formation of edge states. As a modelwe employ a dimer chain that exhibits a topological phase transition. The connection to a strongly biased electron source and drain enables transport. We show that the related emergence of edge states is manifest in the shot noise properties as it is accompanied by a crossover from bunched electron transport to a Poissonian process. For both regions we develop a scenario that can be captured by a rate equation. The resulting analytical expressions for the Fano factor agree well with the numerical solution of a full quantum master equation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PHASE; BANDS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 03 Apr 2019 10:25 |
| Last Modified: | 03 Apr 2019 10:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/3226 |
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