Tunneling of Cooper pairs across voltage-biased asymmetric single-Cooper-pair transistors

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Leppäkangas, J.
dc.contributor.author Thuneberg, E.
dc.contributor.author Lindell, R.
dc.contributor.author Hakonen, Pertti J.
dc.date.accessioned 2015-09-10T09:01:33Z
dc.date.available 2015-09-10T09:01:33Z
dc.date.issued 2006
dc.identifier.citation Leppäkangas, J. & Thuneberg, E. & Lindell, R. & Hakonen, Pertti J. 2006. Tunneling of Cooper pairs across voltage-biased asymmetric single-Cooper-pair transistors. Physical Review B. Volume 74, Issue 5. 054504/1-9. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.74.054504 en
dc.identifier.issn 1098-0121 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/17629
dc.description.abstract We analyze tunneling of Cooper pairs across voltage biased asymmetric single-Cooper-pair transistors. Also tunneling of Cooper pairs across two capacitively coupled Cooper-pair boxes is considered, when the capacitive coupling and Cooper pair tunneling are provided by a small Josephson junction between the islands. The theoretical analysis is done at subgap voltages, where the current-voltage characteristics depend strongly on the macroscopic eigenstates of the island(s) and their coupling to the dissipative environment. As the environment we use an impedance which satisfies Re[Z(ω)]⪡RQ and a few LC oscillators in series with Z(ω). The numerically calculated I−V curves are compared with experiments where the quantum states of mesoscopic SQUIDs are probed with inelastic Cooper pair tunneling. The main features of the observed I−V data are reproduced. Especially, we find traces of band structure in the higher excited states of the Cooper-pair boxes as well as traces of multiphoton processes between two Cooper-pair boxes in the regime of large Josephson coupling EJ⪢EC. en
dc.format.extent 054504/1-9
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society (APS) en
dc.relation.ispartofseries Physical Review B en
dc.relation.ispartofseries Volume 74, Issue 5
dc.rights © 2006 American Physical Society (APS). This is the accepted version of the following article: Leppäkangas, J. & Thuneberg, E. & Lindell, R. & Hakonen, Pertti J. 2006. Tunneling of Cooper pairs across voltage-biased asymmetric single-Cooper-pair transistors. Physical Review B. Volume 74, Issue 5. 054504/1-9. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.74.054504, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.74.054504. en
dc.subject.other Physics en
dc.title Tunneling of Cooper pairs across voltage-biased asymmetric single-Cooper-pair transistors en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Physical Society (APS)
dc.contributor.school Perustieteiden korkeakoulu fi
dc.contributor.school School of Science en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.contributor.department Department of Applied Physics en
dc.subject.keyword Cooper pair tunneling en
dc.subject.keyword transistors en
dc.identifier.urn URN:NBN:fi:aalto-201509094239
dc.type.dcmitype text en
dc.identifier.doi 10.1103/physrevb.74.054504
dc.type.version Final published version en


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