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.

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Metadaten
Author:Mónica BenitoORCiDGND, Michael Niklas, Gloria Platero, Sigmund Kohle
URN:urn:nbn:de:bvb:384-opus4-1042920
Frontdoor URLhttps://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