Full control of qubit rotations in a voltage-biased superconducting flux qubit


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CHIROLLI, Luca, Guido BURKARD, 2006. Full control of qubit rotations in a voltage-biased superconducting flux qubit. In: Physical Review(B74), 174510

@article{Chirolli2006contr-4683, title={Full control of qubit rotations in a voltage-biased superconducting flux qubit}, year={2006}, doi={10.1103/PhysRevB.74.174510}, number={B74}, journal={Physical Review}, author={Chirolli, Luca and Burkard, Guido}, note={Article Number: 174510} }

<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/123456789/4683"> <dc:language>eng</dc:language> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T14:49:33Z</dcterms:available> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/4683"/> <dc:creator>Chirolli, Luca</dc:creator> <dc:rights>deposit-license</dc:rights> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T14:49:33Z</dc:date> <dc:contributor>Burkard, Guido</dc:contributor> <dc:format>application/pdf</dc:format> <dc:creator>Burkard, Guido</dc:creator> <dcterms:issued>2006</dcterms:issued> <dcterms:bibliographicCitation>First publ. in: arXiv:cond-mat/0606587 [cond-mat.supr-con], also publ in: Physical Review (2006), B74, 174510</dcterms:bibliographicCitation> <dcterms:abstract xml:lang="eng">We study a voltage-controlled version of the superconducting flux qubit [Chiorescu et al., Science 299, 1869 (2003)] and show that full control of qubit rotations on the entire Bloch sphere can be achieved. Circuit graph theory is used to study a setup where voltage sources are attached to the two superconducting islands formed between the three Josephson junctions in the flux qubit. Applying a voltage allows qubit rotations about the y axis, in addition to pure x and z rotations obtained in the absence of applied voltages. The orientation and magnitude of the rotation axis on the Bloch sphere can be tuned by the gate voltages, the external magnetic flux, and the ratio between the Josephson energies of the junctions via a flux-tunable junction. We compare the single-qubit control in the known regime alpha1 and estimate the decoherence due to voltage fluctuations.</dcterms:abstract> <dc:contributor>Chirolli, Luca</dc:contributor> <dcterms:title>Full control of qubit rotations in a voltage-biased superconducting flux qubit</dcterms:title> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103416863-3868037-7"/> </rdf:Description> </rdf:RDF>

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