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dc.contributor.authorTanttu, Ten
dc.contributor.authorRossi, Alessandroen
dc.contributor.authorTan, KYen
dc.contributor.authorMäkinen, Aen
dc.contributor.authorChan, KWen
dc.contributor.authorDzurak, ASen
dc.contributor.authorMöttönen, Men
dc.date.accessioned2017-04-18T11:05:22Z
dc.date.available2017-04-18T11:05:22Z
dc.date.issued2016-11-08en
dc.identifier.issn2045-2322
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/263673
dc.description.abstractSemiconductor-based quantum dot single-electron pumps are currently the most promising candidates for the direct realization of the emerging quantum standard of the ampere in the International System of Units. Here, we discuss a silicon quantum dot single-electron pump with radio frequency control over the transparencies of entrance and exit barriers as well as the dot potential. We show that our driving protocol leads to robust bidirectional pumping: one can conveniently reverse the direction of the quantized current by changing only the phase shift of one driving waveform with respect to the others. We anticipate that this pumping technique may be used in the future to perform error counting experiments by pumping the electrons into and out of a reservoir island monitored by a charge sensor.
dc.description.sponsorshipThe financial support from the Centre of Excellence in Computational Nanoscience (project 284621 and 251748) by the Academy of Finland (Grant Nos 251748, 135794, 272806, and 276528), the Australian Research Council (Grant Nos DP120104710 and DP160104923), Jenny and Antti Wihuri Foundation, The Finnish Cultural Foundation, and the Australian National Fabrication Facility are acknowledged. A. R. thanks the University of New South Wales Early Career Research Grant scheme for financial support. We acknowledge the provision of facilities and technical support by Aalto University at Micronova Nanofabrication Centre.
dc.languageengen
dc.language.isoenen
dc.publisherNature Publishing Group
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleThree-waveform bidirectional pumping of single electrons with a silicon quantum doten
dc.typeArticle
prism.number36381en
prism.publicationDate2016en
prism.publicationNameScientific Reportsen
prism.volume6en
dc.identifier.doi10.17863/CAM.9033
dcterms.dateAccepted2016-10-12en
rioxxterms.versionofrecord10.1038/srep36381en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2016-11-08en
dc.contributor.orcidRossi, Alessandro [0000-0001-7935-7560]
dc.identifier.eissn2045-2322
rioxxterms.typeJournal Article/Reviewen
cam.issuedOnline2016-11-08en
cam.orpheus.successThu Jan 30 12:56:31 GMT 2020 - The item has an open VoR version.*
rioxxterms.freetoread.startdate2100-01-01


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International