Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Bulletin of the American Physical Society

Chip Mount Design as a Dissipation-Limiting Factor in High Quality Superconducting Resonators

B. Campbell, R. Barends, Joerg Bochmann, Yu Chen, Z. Chen, B. Chiaro, A. Dunsworth, I.-C. Hoi, Evan R. Jeffrey, J. Kelly, A. Megrant, J. Mutus, Charels Neil, P. J. J. O’Malley, Chris Quintana, P. Roushan, D. Sank, A. Vainsencher, J. Wenner, T. White, Andrew N. Cleland, John M. Martinis

Published Mar 5, 2014• 0 citations
OpenAlex

Related papers

Chip Mount Design as a Dissipation-Limiting Factor in High Quality Superconducting Resonators BROOKS CAMPBELL, R. BARENDS,

Joerg Bochmann, Yu Chen, Z. Chen +3 more

•Jan 1, 2013•0 citations

Characterizing Low-Quality-Factor Dissipative Superconducting Resonators

Yu-Cheng Chang, Bayan Karimi, Jorden Senior +5 more

•Apr 3, 2019•0 citations

Flux-tunable heat sink for quantum electric circuits

Matti Partanen, Kuan Yen Tan, Shumpei Masuda +10 more

Abstract Superconducting microwave circuits show great potential for practical quantum technological applications such as quantum information processing. However, fast and on-demand initialization of the quantum degrees of freedom in these devices remains a challenge. Here, we experimentally implement a tunable heat sink that is potentially suitable for the initialization of superconducting qubits. Our device consists of two coupled resonators. The first resonator has a high quality factor and a fixed frequency whereas the second resonator is designed to have a low quality factor and a tunable resonance frequency. We engineer the low quality factor using an on-chip resistor and the frequency tunability using a superconducting quantum interference device. When the two resonators are in resonance, the photons in the high-quality resonator can be efficiently dissipated. We show that the corresponding loaded quality factor can be tuned from above 105 down to a few thousand at 10 GHz in good quantitative agreement with our theoretical model.

arXiv:1712.10256•Scientific Reports•Apr 16, 2018•3 citations

Optimized coplanar waveguide resonators for a superconductor–atom interface

M. A. Beck, J. A. Isaacs, D. Booth +3 more

We describe the design and characterization of superconducting coplanar waveguide cavities tailored to facilitate strong coupling between superconducting quantum circuits and single trapped Rydberg atoms. For initial superconductor–atom experiments at 4.2 K, we show that resonator quality factors above 104 can be readily achieved. Furthermore, we demonstrate that the incorporation of thick-film copper electrodes at a voltage antinode of the resonator provides a route to enhance the zero-point electric fields of the resonator in a trapping region that is 40 μm above the chip surface, thereby minimizing chip heating from scattered trap light. The combination of high resonator quality factor and strong electric dipole coupling between the resonator and the atom should make it possible to achieve the strong coupling limit of cavity quantum electrodynamics with this system.

arXiv:1605.01996•Applied Physics Letters•Aug 29, 2016•15 citations

Improvement in Superconducting Resonator Quality Factor Through Surface Passivation

Cassidy Berk, Archan Banerjee, Ahmed Hajr +5 more

Bulletin of the American Physical Society•Mar 19, 2021•1 citation

Characterizing and reducing microfabrication-induced loss in superconducting devices, Part I: Resonators

A. Dunsworth, A. Megrant, Z. Chen +18 more

Bulletin of the American Physical Society•Mar 16, 2016•0 citations
Abstract Superconducting microwave circuits show great potential for practical quantum technological applications such as quantum information processing. However, fast and on-demand initialization of the quantum degrees of freedom in these devices remains a challenge. Here, we experimentally implement a tunable heat sink that is potentially suitable for the initialization of superconducting qubits. Our device consists of two coupled resonators. The first resonator has a high quality factor and a fixed frequency whereas the second resonator is designed to have a low quality factor and a tunable resonance frequency. We engineer the low quality factor using an on-chip resistor and the frequency tunability using a superconducting quantum interference device. When the two resonators are in resonance, the photons in the high-quality resonator can be efficiently dissipated. We show that the corresponding loaded quality factor can be tuned from above 105 down to a few thousand at 10 GHz in good quantitative agreement with our theoretical model.
We describe the design and characterization of superconducting coplanar waveguide cavities tailored to facilitate strong coupling between superconducting quantum circuits and single trapped Rydberg atoms. For initial superconductor–atom experiments at 4.2 K, we show that resonator quality factors above 104 can be readily achieved. Furthermore, we demonstrate that the incorporation of thick-film copper electrodes at a voltage antinode of the resonator provides a route to enhance the zero-point electric fields of the resonator in a trapping region that is 40 μm above the chip surface, thereby minimizing chip heating from scattered trap light. The combination of high resonator quality factor and strong electric dipole coupling between the resonator and the atom should make it possible to achieve the strong coupling limit of cavity quantum electrodynamics with this system.