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dc.contributor.authorSilveri, Matti
dc.contributor.authorGrabert, Hermann
dc.contributor.authorMasuda, Shumpei
dc.contributor.authorTan, Kuan Yen
dc.contributor.authorMöttönen, Mikko
dc.date.accessioned2017-11-28T08:21:41Z
dc.date.available2017-11-28T08:21:41Z
dc.date.issued2017
dc.identifier.citationSilveri, M., Grabert, H., Masuda, S., Tan, K. Y., & Möttönen, M. (2017). Theory of quantum-circuit refrigeration by photon-assisted electron tunneling. <i>Physical Review B</i>, <i>96</i>(9), Article 094524. <a href="https://doi.org/10.1103/PhysRevB.96.094524" target="_blank">https://doi.org/10.1103/PhysRevB.96.094524</a>
dc.identifier.otherCONVID_27289493
dc.identifier.otherTUTKAID_75357
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/56028
dc.description.abstractWe 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.
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review B
dc.subject.othersuperconducting quantum circuits
dc.subject.otherquantum-circuit refrigeration
dc.subject.otherphoton-assisted tunneling
dc.titleTheory of quantum-circuit refrigeration by photon-assisted electron tunneling
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201711234345
dc.contributor.laitosInformaatioteknologian tiedekuntafi
dc.contributor.laitosFaculty of Information Technologyen
dc.contributor.oppiaineTietotekniikkafi
dc.contributor.oppiaineMathematical Information Technologyen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-11-23T07:15:07Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn2469-9950
dc.relation.numberinseries9
dc.relation.volume96
dc.type.versionpublishedVersion
dc.rights.copyright© 2017 American Physical Society. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.relation.doi10.1103/PhysRevB.96.094524


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