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Reservoir engineering using quantum optimal control for qubit reset

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Basilewitsch, Daniel
dc.contributor.author Cosco, Francesco
dc.contributor.author Lo Gullo, Nicolino
dc.contributor.author Mottonen, Mikko
dc.contributor.author Ala-Nissila, Tapio
dc.contributor.author Koch, Christiane P.
dc.contributor.author Maniscalco, Sabrina
dc.date.accessioned 2019-11-07T12:00:53Z
dc.date.available 2019-11-07T12:00:53Z
dc.date.issued 2019-09-24
dc.identifier.citation Basilewitsch , D , Cosco , F , Lo Gullo , N , Mottonen , M , Ala-Nissila , T , Koch , C P & Maniscalco , S 2019 , ' Reservoir engineering using quantum optimal control for qubit reset ' , New Journal of Physics , vol. 21 , no. 9 , 093054 . https://doi.org/10.1088/1367-2630/ab41ad en
dc.identifier.issn 1367-2630
dc.identifier.other PURE UUID: 0ddfb743-b0a8-4180-a526-d3973a06124b
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/0ddfb743-b0a8-4180-a526-d3973a06124b
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/37971700/Basilewitsch_2019_New_J._Phys._21_093054.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/41020
dc.description | openaire: EC/H2020/681311/EU//QUESS
dc.description.abstract We determine how to optimally reset a superconducting qubit which interacts with a thermal environment in such a way that the coupling strength is tunable. Describing the system in terms of a time-local master equation with time-dependent decay rates and using quantum optimal control theory, we identify temporal shapes of tunable level splittings which maximize the efficiency of the reset protocol in terms of duration and error. Time-dependent level splittings imply a modification of the system-environment coupling, varying the decay rates as well as the Lindblad operators. Our approach thus demonstrates efficient reservoir engineering employing quantum optimal control. We find the optimized reset strategy to consist in maximizing the decay rate from one state and driving non-adiabatic population transfer into this strongly decaying state. en
dc.format.extent 12
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation info:eu-repo/grantAgreement/EC/H2020/681311/EU//QUESS
dc.relation.ispartofseries New Journal of Physics en
dc.relation.ispartofseries Volume 21 en
dc.rights openAccess en
dc.title Reservoir engineering using quantum optimal control for qubit reset en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Universität Kassel
dc.contributor.department Ulm University
dc.contributor.department University of Turku
dc.contributor.department Centre of Excellence in Quantum Technology, QTF
dc.contributor.department Department of Applied Physics en
dc.subject.keyword quantum optimal control
dc.subject.keyword qubit initialization
dc.subject.keyword time-local master equation with time-dependent decay
dc.subject.keyword quantum reservoir engineering
dc.subject.keyword circuit QED
dc.subject.keyword INTERNAL DEGREES
dc.subject.keyword STATE
dc.subject.keyword NOISE
dc.identifier.urn URN:NBN:fi:aalto-201911076025
dc.identifier.doi 10.1088/1367-2630/ab41ad
dc.type.version publishedVersion

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