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 |
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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 |