Characterization of dissipation due to quasiparticles and dielectric loss in a Josephson metamaterial

Juha Hassel, P. Lähteenmäki, Andrey Timofeev, G.S. Paraoanu, P.J. Hakonen

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    Abstract

    Josephson junctions can be arranged in a metamaterial configuration, forming an artificial one-dimensional medium for microwave propagation, which enables fast tuning of the speed of light by an external magnetic field. This metamaterial has been used for parametric amplification and as a demonstrator of the dynamical Casimir effect. An important property of metamaterial-based devices is damping, which is fundamentally limited by mechanisms related to the Josephson junctions themselves. In this paper we derive theoretical models for two such mechanisms, the quasiparticle tunneling and the dielectric loss within the material of the tunnel barrier. We discuss whether the junction-based effects are likely to be the limiting factors in the experimentally observed quality factors of metamaterial-based resonators.
    Original languageEnglish
    Title of host publicationProceedings
    Subtitle of host publicationProgress in Electromagnetics Research Symposium, PIERS 2013
    PublisherElectromagnetics Academy
    Pages484-488
    ISBN (Print)978-193414226-4
    Publication statusPublished - 2013
    MoE publication typeNot Eligible
    Event34th Progress in Electromagnetics Research Symposium, PIERS 2013 - Stockholm, Sweden
    Duration: 12 Aug 201315 Aug 2013
    Conference number: 34

    Conference

    Conference34th Progress in Electromagnetics Research Symposium, PIERS 2013
    Abbreviated titlePIERS 2013
    CountrySweden
    CityStockholm
    Period12/08/1315/08/13

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    Hassel, J., Lähteenmäki, P., Timofeev, A., Paraoanu, G. S., & Hakonen, P. J. (2013). Characterization of dissipation due to quasiparticles and dielectric loss in a Josephson metamaterial. In Proceedings: Progress in Electromagnetics Research Symposium, PIERS 2013 (pp. 484-488). Electromagnetics Academy.