Experimentally Verified, Fast Analytic, and Numerical Design of Superconducting Resonators in Flip-Chip Architectures
Artikel i vetenskaplig tidskrift, 2023
In superconducting quantum processors, the predictability of device parameters is of increasing importance as many laboratories scale up their systems to larger sizes in a 3-D-integrated architecture. In particular, the properties of superconducting resonators must be controlled well to ensure high-fidelity multiplexed readout of qubits. Here, we present a method, based on conformal mapping techniques, to predict a resonator's parameters directly from its 2-D cross-section, without computationally heavy and time-consuming 3-D simulation. We demonstrate the method's validity by comparing the calculated resonator frequency and coupling quality factor with those obtained through 3-D finite-element-method simulation and by measurement of 15 resonators in a flip-chip-integrated architecture. We achieve a discrepancy of less than 2% between designed and measured frequencies for 6-GHz resonators. We also propose a design method that reduces the sensitivity of the resonant frequency to variations in the interchip spacing.
Resonators
Finite element analysis
coplanar waveguide
Superconducting magnets
Frequency measurement
penetration depth
flip chip
Coplanar waveguides
Flip-chip devices
Qubit
superconducting resonator
kinetic inductance
quantum processor
Conformal mapping
Författare
Hangxi Li
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
Daryoush Shiri
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
Sandoko Kosen
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
Marcus Rommel
Chalmers, Mikroteknologi och nanovetenskap, Nanotekniklaboratoriet
Lert Chayanun
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
Andreas Nylander
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
Robert Rehammar
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
Giovanna Tancredi
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
Marco Caputo
Teknologian Tutkimuskeskus (VTT)
Kestutis Grigoras
Teknologian Tutkimuskeskus (VTT)
Leif Gronberg
Teknologian Tutkimuskeskus (VTT)
Joonas Govenius
Teknologian Tutkimuskeskus (VTT)
Jonas Bylander
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
IEEE Transactions on Quantum Engineering
26891808 (eISSN)
Vol. 4 3101312Open Superconducting Quantum Computers (OpenSuperQPlus)
Europeiska kommissionen (EU) (EC/HE/101113946), 2023-03-01 -- 2026-08-31.
An Open Superconducting Quantum Computer (OpenSuperQ)
Europeiska kommissionen (EU) (EC/H2020/820363), 2018-10-01 -- 2021-09-30.
Drivkrafter
Hållbar utveckling
Innovation och entreprenörskap
Styrkeområden
Nanovetenskap och nanoteknik
Infrastruktur
C3SE (Chalmers Centre for Computational Science and Engineering)
Nanotekniklaboratoriet
Ämneskategorier
Annan fysik
Elektroteknik och elektronik
DOI
10.1109/TQE.2023.3302371