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dc.contributor.authorWabnig, J.
dc.contributor.authorLovett, B. W.
dc.identifier.citationWabnig , J & Lovett , B W 2009 , ' A quantum dot single spin meter ' , New Journal of Physics , vol. 11 , 043031 .
dc.identifier.otherPURE: 79639611
dc.identifier.otherPURE UUID: 3bb0e56a-a9df-4a56-a3eb-3a6cf1d30567
dc.identifier.otherWOS: 000265678400031
dc.identifier.otherScopus: 66249125360
dc.identifier.otherORCID: /0000-0001-5142-9585/work/47136541
dc.descriptionWe thank the QIPIRC (GR/S82176/01) for support. BWL thanks the Royal Society for support through a University Research Fellowship. JW thanks the Wenner-Gren Foundations for financial support.en
dc.description.abstractWe present the theory of a single spin meter consisting of a quantum dot in a magnetic field under microwave irradiation combined with a charge counter. We show that when a current is passed through the dot, a change in the average occupation number occurs if the microwaves are resonant with the on-dot Zeeman splitting. The width of the resonant change is given by the microwave-induced Rabi frequency, making the quantum dot a sensitive probe of the local magnetic field and enabling the detection of the state of a nearby spin. If the dot-spin and the nearby spin have different g-factors, a non-demolition readout of the spin state can be achieved. The conditions for a reliable spin readout are found.
dc.relation.ispartofNew Journal of Physicsen
dc.rights© 2009 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY 3.0) license, which permits others to distribute, remix, adapt and build upon this work, for commercial use, provided the original work is properly citeden
dc.subjectResonance force microscopyen
dc.subjectElectrical detectionen
dc.subjectCarbon nanotubeen
dc.subjectQC Physicsen
dc.titleA quantum dot single spin meteren
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.description.statusPeer revieweden

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