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Ground-State Cooling of a Mechanical Oscillator by Interference in Andreev Reflection

Ground-State Cooling of a Mechanical Oscillator by Interference in Andreev Reflection

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STADLER, Pascal, Wolfgang BELZIG, Gianluca RASTELLI, 2016. Ground-State Cooling of a Mechanical Oscillator by Interference in Andreev Reflection. In: Physical Review Letters. 117, 197202. ISSN 0031-9007. eISSN 1079-7114

@article{Stadler2016Groun-35901, title={Ground-State Cooling of a Mechanical Oscillator by Interference in Andreev Reflection}, year={2016}, doi={10.1103/PhysRevLett.117.197202}, volume={117}, issn={0031-9007}, journal={Physical Review Letters}, author={Stadler, Pascal and Belzig, Wolfgang and Rastelli, Gianluca}, note={This research was supported by the Zukunftskolleg of the University of Konstanz and by the DFG through the collaborative research center SFB 767 Article Number: 197202} }

<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/123456789/35901"> <dc:creator>Stadler, Pascal</dc:creator> <dc:creator>Rastelli, Gianluca</dc:creator> <dc:contributor>Rastelli, Gianluca</dc:contributor> <dcterms:title>Ground-State Cooling of a Mechanical Oscillator by Interference in Andreev Reflection</dcterms:title> <dc:contributor>Stadler, Pascal</dc:contributor> <dc:contributor>Belzig, Wolfgang</dc:contributor> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/35901"/> <dcterms:rights rdf:resource="http://nbn-resolving.de/urn:nbn:de:bsz:352-20150914100631302-4485392-8"/> <dcterms:issued>2016</dcterms:issued> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-11-14T14:29:30Z</dcterms:available> <dc:creator>Belzig, Wolfgang</dc:creator> <dc:language>eng</dc:language> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-11-14T14:29:30Z</dc:date> <dcterms:abstract xml:lang="eng">We study the ground-state cooling of a mechanical oscillator linearly coupled to the charge of a quantum dot inserted between a normal metal and a superconducting contact. Such a system can be realized, e.g., by a suspended carbon nanotube quantum dot with a capacitive coupling to a gate contact. Focusing on the subgap transport regime, we analyze the inelastic Andreev reflections which drive the resonator to a nonequilibrium state. For small coupling, we obtain that vibration-assisted reflections can occur through two distinct interference paths. The interference determines the ratio between the rates of absorption and emission of vibrational energy quanta. We show that ground-state cooling of the mechanical oscillator can be achieved for many of the oscillator's modes simultaneously or for single modes selectively, depending on the experimentally tunable coupling to the superconductor.</dcterms:abstract> </rdf:Description> </rdf:RDF>

Dateiabrufe seit 14.11.2016 (Informationen über die Zugriffsstatistik)

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