{ "id": "1511.01348", "version": "v1", "published": "2015-11-04T14:27:03.000Z", "updated": "2015-11-04T14:27:03.000Z", "title": "Topological Blockade of Transport in Quantum Dot Arrays", "authors": [ "Mónica Benito", "Michael Niklas", "Gloria Platero", "Sigmund Kohler" ], "categories": [ "cond-mat.mes-hall" ], "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 model we employ a dimer chain that exhibits a topological phase transition. The connection to strongly biased electron source and drain enables transport. The topological transition is manifest in the shot noise properties as it is accompanied by a crossover from bunched electron transport to a Poisson process. We develop for both regions 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.", "revisions": [ { "version": "v1", "updated": "2015-11-04T14:27:03.000Z" } ], "analyses": { "keywords": [ "quantum dot arrays", "topological blockade", "full quantum master equation", "transport blockade mechanism", "fano factor agree" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }