Theory of quantum-circuit refrigeration by photon-assisted electron tunneling

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Silveri, Matti Grabert, Hermann Masuda, Shumpei Tan, Kuan Yen Möttönen, Mikko 2018-05-22T14:49:11Z 2018-05-22T14:49:11Z 2017-09-22
dc.identifier.citation Silveri , M , Grabert , H , Masuda , S , Tan , K Y & Möttönen , M 2017 , ' Theory of quantum-circuit refrigeration by photon-assisted electron tunneling ' Physical Review B , vol 96 , no. 9 , 094524 , pp. 1-14 . DOI: 10.1103/PhysRevB.96.094524 en
dc.identifier.issn 2469-9950
dc.identifier.issn 1550-235X
dc.identifier.other PURE UUID: d350dfd2-25f0-4ae8-a15f-ff5445067eff
dc.identifier.other PURE ITEMURL:
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dc.description | openaire: EC/H2020/681311/EU//QUESS
dc.description.abstract We focus on a recently experimentally realized scenario of normal-metal-insulator-superconductor tunnel junctions coupled to a superconducting resonator. We develop a first-principles theory to describe the effect of photon-assisted electron tunneling on the quantum state of the resonator. Our results are in very good quantitative agreement with the previous experiments on refrigeration and heating of the resonator using the photon-assisted tunneling, thus providing a stringent verification of the developed theory. Importantly, our results provide simple analytical estimates of the voltage-tunable coupling strength and temperature of the thermal reservoir formed by the photon-assisted tunneling. Consequently, they are used to introduce optimization principles for initialization of quantum devices using such a quantum-circuit refrigerator. Thanks to the first-principles nature of our approach, extension of the theory to the full spectrum of quantum electric devices seems plausible. en
dc.format.extent 1-14
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation info:eu-repo/grantAgreement/EC/H2020/681311/EU//QUESS
dc.relation.ispartofseries Physical Review B en
dc.relation.ispartofseries Volume 96, issue 9 en
dc.rights openAccess en
dc.subject.other Condensed Matter Physics en
dc.subject.other 114 Physical sciences en
dc.title Theory of quantum-circuit refrigeration by photon-assisted electron tunneling en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.contributor.department University of Freiburg
dc.subject.keyword Condensed Matter Physics
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201805222626
dc.identifier.doi 10.1103/PhysRevB.96.094524
dc.type.version publishedVersion

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