Optimization of quantized charge pumping using full counting statistics

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorPotanina, Elinaen_US
dc.contributor.authorBrandner, Kayen_US
dc.contributor.authorFlindt, Christianen_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorCentre of Excellence in Quantum Technology, QTFen
dc.contributor.groupauthorQuantum Transporten
dc.date.accessioned2019-02-25T08:50:58Z
dc.date.available2019-02-25T08:50:58Z
dc.date.issued2019-01-24en_US
dc.description.abstractWe optimize the operation of single-electron charge pumps using full counting statistics techniques. To this end, we evaluate the statistics of pumped charge on a wide range of driving frequencies using Floquet theory, focusing here on the current and the noise. For charge pumps controlled by one or two gate voltages, we demonstrate that our theoretical framework may lead to enhanced device performance. Specifically, by optimizing the driving parameters, we predict a significant increase in the frequencies for which a quantized current can be produced. For adiabatic two-parameter pumps, we exploit that the pumped charge and the noise can be expressed as surface integrals over Berry curvatures in parameter space. Our findings are important for the efforts to realize high-frequency charge pumping, and our predictions may be verified using current technology.en
dc.description.versionPeer revieweden
dc.format.extent1-6
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationPotanina, E, Brandner, K & Flindt, C 2019, ' Optimization of quantized charge pumping using full counting statistics ', Physical Review B, vol. 99, no. 3, 035437, pp. 1-6 . https://doi.org/10.1103/PhysRevB.99.035437en
dc.identifier.doi10.1103/PhysRevB.99.035437en_US
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.otherPURE UUID: 9fe00486-7c00-428d-8a18-2a036808acdden_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/9fe00486-7c00-428d-8a18-2a036808acdden_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85060887418&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/32112220/PhysRevB.99.035437.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/36844
dc.identifier.urnURN:NBN:fi:aalto-201902252001
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review Ben
dc.relation.ispartofseriesVolume 99, issue 3en
dc.rightsopenAccessen
dc.titleOptimization of quantized charge pumping using full counting statisticsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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