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dc.contributor.authorBarthel, Christian
dc.contributor.authorKjærgaard, M.
dc.contributor.authorMedford, James Redding
dc.contributor.authorStopa, Michael P
dc.contributor.authorMarcus, Charles Masamed
dc.contributor.authorHanson, M. P.
dc.contributor.authorGossard, Arthur C.
dc.date.accessioned2011-08-15T14:26:34Z
dc.date.issued2010
dc.identifier.citationBarthel, Christian, M. Kjærgaard, James Redding Medford, Michael Stopa, Charles Masamed Marcus, M. P. Hanson, and Arthur C. Gossard. 2010. Fast sensing of double-dot charge arrangement and spin state with a radio-frequency sensor quantum dot. Physical Review B 81(161308R).en_US
dc.identifier.issn1098-0121en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:5110749
dc.description.abstractSingle-shot measurement of the charge arrangement and spin state of a double quantum dot are reported with measurement times down to 100 ns. Sensing uses radio-frequency reflectometry of a proximal quantum dot in the Coulomb blockade regime. The sensor quantum dot is up to 30 times more sensitive than a comparable quantum point-contact sensor and yields three times greater signal to noise in rf single-shot measurements. Numerical modeling is qualitatively consistent with experiment and shows that the improved sensitivity of the sensor quantum dot results from reduced lifetime broadening and screening.en_US
dc.description.sponsorshipPhysicsen_US
dc.description.sponsorshipOther Research Uniten_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofdoi:10.1103/PhysRevB.81.161308en_US
dc.relation.hasversionhttp://marcus.physics.harvard.edu/papers/Barthel_PRBRC2010.pdfen_US
dash.licenseOAP
dc.subjectCoulomb-blockadeen_US
dc.subjectsingle-electron transistoren_US
dc.titleFast Sensing of Double-Dot Charge Arrangement and Spin State with a Radio-Frequency Sensor Quantum Doten_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalPhysical Review B Condensed Matter and Materials Physicsen_US
dash.depositing.authorMarcus, Charles Masamed
dc.date.available2011-08-15T14:26:34Z
dc.identifier.doi10.1103/PhysRevB.81.161308*
dash.contributor.affiliatedStopa, Michael P
dash.contributor.affiliatedBarthel, C
dash.contributor.affiliatedMedford, James Redding
dash.contributor.affiliatedMarcus, C


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