Post-fabrication frequency trimming of coplanar-waveguide resonators in circuit QED quantum processors

Journal article (2023)

Authors

S. Valles Sanclemente QuTech Advanced Research Centre, QCD/DiCarlo Lab - QuTech Advanced Research Centre , Kavli institute of nanoscience Delft
S.L.M. van der Meer QCD/DiCarlo Lab - QuTech Advanced Research Centre , QuTech Advanced Research Centre, Kavli institute of nanoscience Delft
S.N. Haider BUS/TNO STAFF - QuTech Advanced Research Centre , QuTech Advanced Research Centre
L. DiCarlo Kavli institute of nanoscience Delft, QCD/DiCarlo Lab - QuTech Advanced Research Centre , QuTech Advanced Research Centre
M. Finkel QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, QCD/DiCarlo Lab - QuTech Advanced Research Centre
N. Muthusubramanian QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, QN/Kavli Nanolab Delft - AS
M.C. Beekman BUS/TNO STAFF - QuTech Advanced Research Centre , QuTech Advanced Research Centre
H.A.S. Ali QCD/DiCarlo Lab - QuTech Advanced Research Centre , QuTech Advanced Research Centre, Kavli institute of nanoscience Delft
J.M. Ferreira Marques QuTech Advanced Research Centre, QCD/DiCarlo Lab - QuTech Advanced Research Centre , Kavli institute of nanoscience Delft
C. Zachariadis QuTech Advanced Research Centre, QN/Kavli Nanolab Delft - AS , Kavli institute of nanoscience Delft
H.M. Veen QCD/DiCarlo Lab - QuTech Advanced Research Centre , QuTech Advanced Research Centre, Kavli institute of nanoscience Delft
T. Stavenga QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, QCD/DiCarlo Lab - QuTech Advanced Research Centre
Research Group
QCD/DiCarlo Lab (QuTech Advanced Research Centre) (TU Delft)
Copyright: © 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
DOI: https://doi.org/10.1063/5.0148222
More Info
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Published Date

2023

Language

English

Faculty

QuTech Advanced Research Centre

Department

Quantum Computing Division

Research Group

QCD/DiCarlo Lab

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.