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Liquid metal printing for superconducting circuits

Alexander Kreiner, Navid Hussain, Ritika Dhundhwal, Haoran Duan, Nicolas Zapata, Gabriel Cadilha Marques, Tino Cubaynes, Torsten Scherer, Wolfgang Wernsdorfer, Michael Hirtz, Ioan Mihai Pop, Jasmin Aghassi-Hagmann, Thomas Reisinger
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⚡ Quantum Brief
Researchers demonstrated a breakthrough in superconducting circuit fabrication using liquid-metal micro-pipette printing, achieving high internal quality factors comparable to traditional nanolithography methods. The technique enables additive manufacturing of superconducting lumped-element resonators, challenging assumptions that additive approaches degrade quantum coherence or superconducting properties. A key advantage is the ability to locally add metal structures without disrupting existing circuit elements, offering flexibility for complex quantum hardware designs. This method supports low-loss device fabrication, critical for scaling quantum computers, ultra-sensitive sensors, and energy-efficient superconducting electronics. The findings, published in November 2025, could accelerate hardware development for fault-tolerant quantum computing by simplifying production and reducing material constraints.
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Quantum Physics arXiv:2511.09705 (quant-ph) [Submitted on 12 Nov 2025] Title:Liquid metal printing for superconducting circuits Authors:Alexander Kreiner, Navid Hussain, Ritika Dhundhwal, Haoran Duan, Nicolas Zapata, Gabriel Cadilha Marques, Tino Cubaynes, Torsten Scherer, Wolfgang Wernsdorfer, Michael Hirtz, Ioan Mihai Pop, Jasmin Aghassi-Hagmann, Thomas Reisinger View a PDF of the paper titled Liquid metal printing for superconducting circuits, by Alexander Kreiner and 12 other authors View PDF HTML (experimental) Abstract:Superconducting circuits are a promising platform for implementing fault-tolerant quantum computers, quantum limited amplifiers, ultra-low power superconducting electronics, and sensors with ultimate sensitivity. Typically, circuit fabrication is realized by standard nanolithography, generally associated with a high level of control over defects and contaminants. Additive approaches have not been used so far since they are expected to be inferior in terms of superconducting properties or quantum coherence. This work shows that liquid-metal based micro-pipette printing is suited for fabricating superconducting lumped-element resonators with high internal quality factors. The applicability of our technique for low-loss superconducting device fabrication and the possibility to locally add metal structures, without affecting any preexisting circuit elements, is a further advantage. Our results open up new avenues in the hardware implementation of scaled-up superconducting quantum computers. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2511.09705 [quant-ph] (or arXiv:2511.09705v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2511.09705 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Alexander Kreiner [view email] [v1] Wed, 12 Nov 2025 20:06:08 UTC (11,275 KB) Full-text links: Access Paper: View a PDF of the paper titled Liquid metal printing for superconducting circuits, by Alexander Kreiner and 12 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2025-11 References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) Links to Code Toggle Papers with Code (What is Papers with Code?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)

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Source: arXiv Quantum Physics

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