Print Email Facebook Twitter Post-fabrication frequency trimming of coplanar-waveguide resonators in circuit QED quantum processors Title Post-fabrication frequency trimming of coplanar-waveguide resonators in circuit QED quantum processors Author Valles Sanclemente, S. (TU Delft QuTech Advanced Research Centre; TU Delft QCD/DiCarlo Lab; Kavli institute of nanoscience Delft) van der Meer, S.L.M. (TU Delft QuTech Advanced Research Centre; TU Delft QCD/DiCarlo Lab; Kavli institute of nanoscience Delft) Finkel, M. (TU Delft QuTech Advanced Research Centre; TU Delft QCD/DiCarlo Lab; Kavli institute of nanoscience Delft) Muthusubramanian, N. (TU Delft QuTech Advanced Research Centre; TU Delft QN/Kavli Nanolab Delft; Kavli institute of nanoscience Delft) Beekman, M.C. (TU Delft BUS/TNO STAFF; TU Delft QuTech Advanced Research Centre) Ali, H.A.S. (TU Delft QuTech Advanced Research Centre; TU Delft QCD/DiCarlo Lab; Kavli institute of nanoscience Delft) Ferreira Marques, J.M. (TU Delft QCD/DiCarlo Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Zachariadis, C. (TU Delft QuTech Advanced Research Centre; TU Delft QN/Kavli Nanolab Delft; Kavli institute of nanoscience Delft) Veen, H.M. (TU Delft QuTech Advanced Research Centre; TU Delft QCD/DiCarlo Lab; Kavli institute of nanoscience Delft) Stavenga, T. (TU Delft QCD/DiCarlo Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Haider, S.N. (TU Delft QuTech Advanced Research Centre; TU Delft BUS/TNO STAFF) DiCarlo, L. (TU Delft QCD/DiCarlo Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Date 2023 Abstract We present the use of a set of airbridges to trim the frequency of microwave coplanar-waveguide (CPW) resonators post-fabrication. This method is compatible with the fabrication steps of conventional CPW airbridges and crossovers and increases device yield by allowing compensation of design and fabrication uncertainty with 100 MHz range and 10 MHz resolution. We showcase two applications in circuit QED. The first is the elimination of frequency collisions between resonators intended to readout different transmons by frequency-division multiplexing. The second is frequency matching of readout and Purcell-filter resonator pairs. Combining this matching with transmon frequency trimming by laser annealing reliably achieves fast and high-fidelity readout across 17-transmon quantum processors. To reference this document use: http://resolver.tudelft.nl/uuid:ef4c61bf-b60f-4a49-ae4a-45c50d55a2e7 DOI https://doi.org/10.1063/5.0148222 ISSN 0003-6951 Source Applied Physics Letters, 123 (3) Part of collection Institutional Repository Document type journal article Rights © 2023 S. Valles Sanclemente, S.L.M. van der Meer, M. Finkel, N. Muthusubramanian, M.C. Beekman, H.A.S. Ali, J.M. Ferreira Marques, C. Zachariadis, H.M. Veen, T. Stavenga, S.N. Haider, L. DiCarlo Files PDF 034004_1_5.0148222.pdf 1.96 MB Close viewer /islandora/object/uuid:ef4c61bf-b60f-4a49-ae4a-45c50d55a2e7/datastream/OBJ/view