Dispersive readout of valley splittings in cavity-coupled silicon quantum dots


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BURKARD, Guido, Jason R. PETTA, 2016. Dispersive readout of valley splittings in cavity-coupled silicon quantum dots. In: Physical Review B. 94(19), 195305. ISSN 2469-9950. eISSN 2469-9969

@article{Burkard2016-07-29T13:30:11ZDispe-36045, title={Dispersive readout of valley splittings in cavity-coupled silicon quantum dots}, year={2016}, doi={10.1103/PhysRevB.94.195305}, number={19}, volume={94}, issn={2469-9950}, journal={Physical Review B}, author={Burkard, Guido and Petta, Jason R.}, note={Article Number: 195305} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/36045"> <dc:language>eng</dc:language> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-11-23T13:28:11Z</dcterms:available> <dc:creator>Burkard, Guido</dc:creator> <dcterms:issued>2016-07-29T13:30:11Z</dcterms:issued> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-11-23T13:28:11Z</dc:date> <dc:contributor>Burkard, Guido</dc:contributor> <dc:creator>Petta, Jason R.</dc:creator> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/36045"/> <dcterms:title>Dispersive readout of valley splittings in cavity-coupled silicon quantum dots</dcterms:title> <dc:contributor>Petta, Jason R.</dc:contributor> <dcterms:abstract xml:lang="eng">The band structure of bulk silicon has a six-fold valley degeneracy. Strain in the Si/SiGe quantum well system partially lifts the valley degeneracy, but the materials factors that set the splitting of the two lowest lying valleys are still under intense investigation. We propose a method for accurately determining the valley splitting in Si/SiGe double quantum dots embedded into a superconducting microwave resonator. We show that low lying valley states in the double quantum dot energy level spectrum lead to readily observable features in the cavity transmission. These features generate a "fingerprint" of the microscopic energy level structure of a semiconductor double quantum dot, providing useful information on valley splittings and intervalley coupling rates.</dcterms:abstract> </rdf:Description> </rdf:RDF>

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