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Electric Control of the Exciton Fine Structure in Non-Parabolic Quantum Dots

Electric Control of the Exciton Fine Structure in Non-Parabolic Quantum Dots

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WELANDER, Erik, Guido BURKARD, 2012. Electric Control of the Exciton Fine Structure in Non-Parabolic Quantum Dots

@unpublished{Welander2012Elect-21783, title={Electric Control of the Exciton Fine Structure in Non-Parabolic Quantum Dots}, year={2012}, author={Welander, Erik and Burkard, Guido} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/21783"> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:rights>terms-of-use</dc:rights> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dcterms:abstract xml:lang="eng">We show that the non-parabolic confinement potential is responsible for the non-monotonic behavior and sign change of the exciton fine-structure splitting (FSS) in optically active self-assembled quantum dots. This insight is important for the theoretical understanding and practical control by electric fields of the quantum state of the emitted light from a biexciton cascade recombination process. We find that a hard-wall (box) confinement potential leads to a FSS that is in better agreement with experimentally measured FSS than a harmonic potential. We then show that a finite applied electric field can be used to remove the FSS entirely, thus allowing for the creation of maximally entangled photons, being vital to the growing field of quantum communication and quantum key distribution.</dcterms:abstract> <dc:language>eng</dc:language> <dc:creator>Burkard, Guido</dc:creator> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/41"/> <dcterms:rights rdf:resource="https://kops.uni-konstanz.de/page/termsofuse"/> <dcterms:title>Electric Control of the Exciton Fine Structure in Non-Parabolic Quantum Dots</dcterms:title> <dc:contributor>Burkard, Guido</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-02-13T16:35:27Z</dcterms:available> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/21783"/> <dc:contributor>Welander, Erik</dc:contributor> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-02-13T16:35:27Z</dc:date> <dcterms:issued>2012</dcterms:issued> <dc:creator>Welander, Erik</dc:creator> </rdf:Description> </rdf:RDF>

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