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

Superconducting NbSi Bolometric Array And SQUID with Cryogenic SiGe Integrated Circuit

D. Prêle, É. Bréelle, M. Piat, Fabrice Voisin, D. Broszkiewicz, M. Pairat, S. Marnieros, L. Dumoulin, Y. Atik, François P. Pajot, C. Evesque, B. Bélier, G. Sou, G. Klisnick, M. Redon

Published Mar 30, 2008• 0 citations
OpenAlex

Related papers

SQUID Multiplexing Circuit for Readout of Superconducting Bolometric Arrays

James A. Chervenak, Erich N. Grossman, K. D. Irwin +5 more

APS•Mar 1, 1998•0 citations

Very-low-noise multiplexing with SQUIDs and SiGe HBTs for readout of large superconducting bolometer arrays

D. Prêle, G. Klisnick, G. Sou +4 more

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment•Jun 5, 2007•5 citations

Integrated Circuit Operating at 4.2 K for Time Domain SQUID Multiplexing of Superconducting Bolometer Array

D. Prêle, Fabrice Voisin, G. Sou +4 more

•Jun 22, 2008•0 citations

Superconductive combinational logic circuit using magnetically coupled SQUID array

Yuki Yamanashi, K. Umeda, K. Sai

Physica C Superconductivity•May 18, 2010•1 citation

SiGe Integrated Circuit∕SQUID Hybrid Cryogenic Multiplexer for Superconducting Bolometer Array

D. Prêle, Fabrice Voisin, R. Oger +6 more

The development of large superconducting bolometer (Transition Edge Sensor: TES) arrays requires ultra low noise amplification and multiplexing electronics. The use of a first transducer stage such as a SQUID (Superconducting QUantum Interference Device) allows ultimate performance in terms of noise. However, the linearization of the SQUID characteristic requires low noise amplification. Furthermore, to realize a time domain multiplexer with SQUIDs, switched biasing is also needed. We have designed an Integrated Circuit (IC) in standard BiCMOS SiGe technology for the readout and the control of a SQUID multiplexer. It includes a low noise amplifier with multiplexed inputs, switched current sources for SQUIDs, and digital circuit for the addressing with only one room temperature clock signal. We have successfully tested this integrated circuit down to 2 K. To validate the operation of a SQUID multiplexer controlled by this SiGe cryogenic IC, we have developed a 2×2 SQUID hybrid demonstrator. It consists of four commercial SQUIDs connected to a SiGe IC.

AIP conference proceedings•Jan 1, 2009•2 citations

Design and Characterization of a 6-mW Cryogenic SiGe IC for Superconducting Qubit Readout

Randy C. Kwende, Dario Rosenstock, Chen Wang +1 more

In this article, a cryogenically cooled SiGe BiCMOS integrated circuit is described and used to achieve >98% readout fidelity when measuring the state of a superconducting transmon qubit coupled to a 6.5-GHz resonant cavity. The circuit employs homodyne detection and uses a novel local oscillator chopping approach to reduce the effects of LO-RF feedthrough in the presence of a high-gain LNA. At 6 mW, the integrated circuit is employed to demonstrate comparable fidelity to a standard HEMT-amplifier-based readout setup, when preceded by a Josephson parametric amplifier with$\geq \sim 18$dB of power gain. In addition, this performance is achieved with the IC consuming less power than the commercial HEMT LNA used in the standard readout setup. To the best of the authors’ knowledge, this is the first demonstration of high-fidelity state readout of superconducting qubits without a standalone cryogenic semiconductor LNA. This demonstration represents an important step in the realization of fully integrated large-scale cryogenic qubit control systems.

IEEE Transactions on Microwave Theory and Techniques•Sep 19, 2024•8 citations
The development of large superconducting bolometer (Transition Edge Sensor: TES) arrays requires ultra low noise amplification and multiplexing electronics. The use of a first transducer stage such as a SQUID (Superconducting QUantum Interference Device) allows ultimate performance in terms of noise. However, the linearization of the SQUID characteristic requires low noise amplification. Furthermore, to realize a time domain multiplexer with SQUIDs, switched biasing is also needed. We have designed an Integrated Circuit (IC) in standard BiCMOS SiGe technology for the readout and the control of a SQUID multiplexer. It includes a low noise amplifier with multiplexed inputs, switched current sources for SQUIDs, and digital circuit for the addressing with only one room temperature clock signal. We have successfully tested this integrated circuit down to 2 K. To validate the operation of a SQUID multiplexer controlled by this SiGe cryogenic IC, we have developed a 2×2 SQUID hybrid demonstrator. It consists of four commercial SQUIDs connected to a SiGe IC.
In this article, a cryogenically cooled SiGe BiCMOS integrated circuit is described and used to achieve >98% readout fidelity when measuring the state of a superconducting transmon qubit coupled to a 6.5-GHz resonant cavity. The circuit employs homodyne detection and uses a novel local oscillator chopping approach to reduce the effects of LO-RF feedthrough in the presence of a high-gain LNA. At 6 mW, the integrated circuit is employed to demonstrate comparable fidelity to a standard HEMT-amplifier-based readout setup, when preceded by a Josephson parametric amplifier with≥∼18\geq \sim 18≥∼18dB of power gain. In addition, this performance is achieved with the IC consuming less power than the commercial HEMT LNA used in the standard readout setup. To the best of the authors’ knowledge, this is the first demonstration of high-fidelity state readout of superconducting qubits without a standalone cryogenic semiconductor LNA. This demonstration represents an important step in the realization of fully integrated large-scale cryogenic qubit control systems.