Edge-state blockade of transport in quantum dot arrays
- 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 model we 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.
| Author: | Mónica BenitoORCiDGND, Michael Niklas, Gloria Platero, Sigmund Kohle |
|---|---|
| URN: | urn:nbn:de:bvb:384-opus4-1042920 |
| Frontdoor URL | https://opus.bibliothek.uni-augsburg.de/opus4/104292 |
| ISSN: | 2469-9950OPAC |
| Parent Title (English): | Physical Review B |
| Publisher: | American Physical Society (APS) |
| Place of publication: | College Park, MD |
| Type: | Article |
| Language: | English |
| Year of first Publication: | 2016 |
| Publishing Institution: | Universität Augsburg |
| Release Date: | 2023/05/10 |
| Volume: | 93 |
| First Page: | 115432 |
| DOI: | https://doi.org/10.1103/PhysRevB.93.115432 |
| Institutes: | Mathematisch-Naturwissenschaftlich-Technische Fakultät |
| Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik | |
| Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Professur für Quantencomputing und Quantengeräte | |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Licence (German): |  Deutsches Urheberrecht |
