Characterizing Microwave Losses in Superconducting Coaxial Cables for Quantum Systems

Conference · Tue Mar 18 00:00:00 EDT 2025 · No journal information

DOI:https://doi.org/10.2172/2550651· OSTI ID:2550651

Vallières, André ^[1]; Kazakov, Sergey ^[1]; Khabiboulline, Timergali ^[1]; Lee, Jae-Yel ^[1]; Murthy, Akshay ^[1]; Pilipenko, Roman M. ^[1]; Pronitchev, Oleg V. ^[1]; Yakovlev, Vyacheslav P. ^[1]; Grassellino, Anna ^[1]; Koch, Jens ^[2]; Lu, Yao ^[1]

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1. Fermilab
2. Northwestern U.

As superconducting quantum systems scale up to enable applications like large-scale quantum computing, challenges such as fabrication yield, wiring complexity, and microwave crosstalk drive the need for high-fidelity, low-loss, modular interconnects. In recent experiments, the performance of these interconnects is often limited by cable loss, a factor that becomes even more critical as we aim for higher fidelity operations and connect increasingly coherent modules. In this talk, we present a detailed characterization of microwave losses in commercially available superconducting cables and discuss how material characterization techniques can be useful for understanding their microscopic origin.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Northwestern U.
• Sponsoring Organization: US Department of Energy
• DOE Contract Number: 89243024CSC000002
• OSTI ID: 2550651
• Report Number(s): FERMILAB-SLIDES-25-0037-SQMS; oai:inspirehep.net:2906515
• Resource Type: Conference presentation
• Conference Information: Journal Name: No journal information
• Country of Publication: United States
• Language: English

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