Measurement scheme of the Berry phase in superconducting circuits

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Möttönen, Mikko Pekola, Jukka P. Vartiainen, Juha J. Brosco, Valentina Hekking, Frank W. J. 2015-05-27T09:00:46Z 2015-05-27T09:00:46Z 2006
dc.identifier.citation Möttönen, Mikko & Pekola, Jukka & Vartiainen, Juha J. & Brosco, Valentina & Hekking, Frank W. J. 2006. Measurement scheme of the Berry phase in superconducting circuits. Physical Review B. Volume 73, Issue 21. 214523/1-10. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.73.214523. en
dc.identifier.issn 1098-0121 (printed)
dc.description.abstract We present a measurement scheme for observing the Berry phase in a flux assisted Cooper pair pump—the Cooper pair sluice. In contrast to the recent experiments, in which the sluice was employed to generate accurate current through a resistance, we consider a device in a superconducting loop. This arrangement introduces a connection between the pumped current and the Berry phase accumulated during the adiabatic pumping cycles. From the adiabaticity criterion, we derive equations for the maximum pumped current and optimize the sluice accordingly. These results apply also to the high accuracy pumping which results in a potential candidate for a metrological current standard. For measuring the pumped current, an additional Josephson junction is installed into the superconducting loop. We show in detail that the switching of this system from superconducting state into normal state as a consequence of an external current pulse through it may be employed to probe the pumped current. To our knowledge the experimental realization of our scheme would be the first observation of the Berry phase in superconducting circuits. en
dc.format.extent 214523/1-10
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 73, Issue 21
dc.rights © 2006 American Physical Society (APS). en
dc.subject.other Physics en
dc.title Measurement scheme of the Berry phase in superconducting circuits en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Physical Society (APS) Perustieteiden korkeakoulu fi School of Science en
dc.contributor.department Department of Applied Physics en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.subject.keyword Berry phase en
dc.subject.keyword Josephson devices en
dc.subject.keyword Cooper pair pumping en
dc.identifier.urn URN:NBN:fi:aalto-201505262890
dc.type.dcmitype text en
dc.identifier.doi 10.1103/physrevb.73.214523
dc.type.version Final published version en

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