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dc.contributor.authorBiesinger, D. E. F.
dc.contributor.authorScheller, C. P.
dc.contributor.authorBraunecker, Bernd
dc.contributor.authorZimmerman, J.
dc.contributor.authorGossard, A. C.
dc.contributor.authorZumbühl, D. M.
dc.identifier.citationBiesinger , D E F , Scheller , C P , Braunecker , B , Zimmerman , J , Gossard , A C & Zumbühl , D M 2015 , ' Intrinsic metastabilities in the charge configuration of a double quantum dot ' , Physical Review Letters , vol. 115 , no. 10 , 106804 .
dc.identifier.otherPURE: 215380330
dc.identifier.otherPURE UUID: ad0127c6-d727-4421-85fc-5ba9b17164d7
dc.identifier.otherScopus: 84942101263
dc.identifier.otherORCID: /0000-0002-7077-8825/work/40448494
dc.identifier.otherWOS: 000360603500006
dc.descriptionThis work was supported by the Swiss Nanoscience Institute (SNI), NCCR QSIT, Swiss National Science Foundation, ERC starting grant (Project No. 207599), EU-FP7 SOLID (Project No. 248629) and MICROKELVIN (Project No. 228464).en
dc.description.abstractWe report a thermally activated metastability in a GaAs double quantum dot exhibiting real-time charge switching in diamond shaped regions of the charge stability diagram. Accidental charge traps and sensor backaction are excluded as the origin of the switching. We present an extension of the canonical double dot theory based on an intrinsic, thermal electron exchange process through the reservoirs, giving excellent agreement with the experiment. The electron spin is randomized by the exchange process, thus facilitating fast, gate-controlled spin initialization. At the same time, this process sets an intrinsic upper limit to the spin relaxation time.
dc.relation.ispartofPhysical Review Lettersen
dc.rights© 2015 American Physical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at
dc.subjectQC Physicsen
dc.titleIntrinsic metastabilities in the charge configuration of a double quantum doten
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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