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

Design and Fabrication of Impedance Matched Parametric Amplifiers for Quantum Applications

Joel Grebel, Audrey Bienfait, Hung-Shen Chang, Ming-Han Chou, Christopher R. Conner, Étienne Dumur, G. A. Peairs, Rhys G. Povey, Youpeng Zhong, Andrew N. Cleland

Published Mar 3, 2020• 0 citations
OpenAlex

Related papers

Design and Fabrication of Broadband Parametric Amplifiers for Quantum Applications

Joel Grebel, Audrey Bienfait, Étienne Dumur +8 more

Bulletin of the American Physical Society•Mar 4, 2019•0 citations

Reducing pump power for broadband impedance-matched Josephson parametric amplifiers

Y. Urade, Kun Zuo, Syotaro Baba +6 more

IEICE Technical Report; IEICE Tech. Rep.•Jan 1, 2021•1 citation

Flux-driven impedance-matched Josephson parametric amplifier with improved pump efficiency

Y. Urade, Kun Zuo, Syotaro Baba +6 more

Bulletin of the American Physical Society•Mar 15, 2021•1 citation

An easily-prepared impedance matched Josephson parametric amplifier*

Yapeng Lu, Quan Zuo, Jiazheng Pan +11 more

An impedance matched parametric amplifier (IMPA) with Josephson junctions is fabricated and characterized. A hybrid structure containing coplanar and strip structures is implemented to realize an impedance taper line and a plate capacitor in an LC nonlinear resonator based on Josephson junctions. The upper plate of the capacitor is isolated with SiN x without grounding as well as the strips. Such easily-prepared designs greatly reduce the requirements for lithography alignment and precision, which makes the fabrication process more reliable. The experimental results show that in such IMPA a gain higher than 25 dB with a bandwidth of about 100 MHz can be obtained. This broadband amplifier operates close to the quantum limit. By adjusting the working point, a higher bandwidth of about 400 MHz can be obtained with a gain of about 17 dB.

Chinese Physics B•May 24, 2021•6 citations

Simulation of Quantum Parametric Amplifiers

Keith Krause

•May 19, 2021•0 citations

Broadband Josephson parametric amplifier using lumped-element transmission line impedance matching architecture

Yapeng Lu, Wenqu Xu, Quan Zuo +12 more

We present a fishbone-like lumped-element artificial transmission line to overcome impedance mismatch in a reflection-type Josephson parametric amplifier between a nonlinear resonator and an external transmission line. Using this easily prepared architecture, we design and fabricate a broadband Josephson parametric amplifier, which has gain in an excess of 20 dB with a bandwidth of hundreds of MHz. Furthermore, by varying the working point of the device, the operating frequency of amplification can be tuned in a wide frequency range of 1 GHz while the amplifier operates in the mode of either three-wave mixing or four-wave mixing. Such a parametric amplifier is suitable for engineering applications of superconducting circuit quantum electrodynamics.

Applied Physics Letters•Feb 21, 2022•18 citations
An impedance matched parametric amplifier (IMPA) with Josephson junctions is fabricated and characterized. A hybrid structure containing coplanar and strip structures is implemented to realize an impedance taper line and a plate capacitor in an LC nonlinear resonator based on Josephson junctions. The upper plate of the capacitor is isolated with SiN x without grounding as well as the strips. Such easily-prepared designs greatly reduce the requirements for lithography alignment and precision, which makes the fabrication process more reliable. The experimental results show that in such IMPA a gain higher than 25 dB with a bandwidth of about 100 MHz can be obtained. This broadband amplifier operates close to the quantum limit. By adjusting the working point, a higher bandwidth of about 400 MHz can be obtained with a gain of about 17 dB.
We present a fishbone-like lumped-element artificial transmission line to overcome impedance mismatch in a reflection-type Josephson parametric amplifier between a nonlinear resonator and an external transmission line. Using this easily prepared architecture, we design and fabricate a broadband Josephson parametric amplifier, which has gain in an excess of 20 dB with a bandwidth of hundreds of MHz. Furthermore, by varying the working point of the device, the operating frequency of amplification can be tuned in a wide frequency range of 1 GHz while the amplifier operates in the mode of either three-wave mixing or four-wave mixing. Such a parametric amplifier is suitable for engineering applications of superconducting circuit quantum electrodynamics.