Print Email Facebook Twitter Magnetic field resilient superconducting coplanar waveguide resonators for hybrid cQED experiments Title Magnetic field resilient superconducting coplanar waveguide resonators for hybrid cQED experiments Author Kroll, J.G. Borsoi, F. van der Enden, K.L. Uilhoorn, W. de Jong, D. Quintero-Perez, M. van Woerkom, D.J. Bruno, A. Plissard, S.R. Car, D. Bakkers, E.P.A.M. Cassidy, M.C. Kouwenhoven, L.P. Publication year 2019 Abstract Superconducting coplanar-waveguide resonators that can operate in strong magnetic fields are important tools for a variety of high-frequency superconducting devices. Magnetic fields degrade resonator performance by creating Abrikosov vortices that cause resistive losses and frequency fluctuations or suppress the superconductivity entirely. To mitigate these effects, we investigate lithographically defined artificial defects in resonators fabricated from NbTiN superconducting films. We show that by controlling the vortex dynamics, the quality factor of resonators in perpendicular magnetic fields can be greatly enhanced. Coupled with the restriction of the device geometry to enhance the superconductors critical field, we demonstrate stable resonances that retain quality factors ?105 at the single-photon power level in perpendicular magnetic fields up to Bƒ ~ 20mT and parallel magnetic fields up to B ~ 6 T. We demonstrate the effectiveness of this technique for hybrid systems by integrating an In-Sb nanowire into a field-resilient superconducting resonator and use it to perform fast charge readout of a gate-defined double quantum dot at B = 1T. Subject Antimony compoundsCoplanar waveguidesElectrodynamicsHybrid systemsIndium compoundsMagnetic circuitsMagnetic fieldsNiobium compoundsNitrogen compoundsParticle beamsResonatorsSemiconductor quantum dotsSuperconducting devicesSuperconducting filmsTiming circuitsTitanium compoundsVortex flow To reference this document use: http://resolver.tudelft.nl/uuid:ede90143-4007-46d9-b536-2d6b30a9b520 DOI https://doi.org/10.1103/physrevapplied.11.064053 TNO identifier 868184 Publisher American Physical Society APS ISSN 2331-7019 Source Physical Review Applied, 11 (11) Document type article Files To receive the publication files, please send an e-mail request to TNO Library.