Ultralow-power coherent qubit control using AQFP logic at millikelvin temperatures
Summarize this article with:
Quantum Physics arXiv:2603.27231 (quant-ph) [Submitted on 28 Mar 2026] Title:Ultralow-power coherent qubit control using AQFP logic at millikelvin temperatures Authors:Hiroto Mukai, Akiyoshi Tomonaga, Rui Wang, Yu Zhou, Taro Yamashita, Nobuyuki Yoshikawa, Jaw-Shen Tsai, Naoki Takeuchi View a PDF of the paper titled Ultralow-power coherent qubit control using AQFP logic at millikelvin temperatures, by Hiroto Mukai and 7 other authors View PDF Abstract:Qubit controllers are essential for scaling superconducting quantum processors, but implementing them at the 10 mK stage of a dilution refrigerator remains challenging due to stringent cooling constraints. Here we report an ultralow-power qubit controller using adiabatic quantum-flux-parametron (AQFP) logic, termed an AQFP-multiplexed qubit controller with virtual Z gates (AQFP QC-VZ). The AQFP QC-VZ generates multi-tone microwave pulses for qubit control with an ultralow power dissipation of 111 pW per qubit. By combining microwave and time-division multiplexing, the AQFP QC-VZ enables parallel application of X and virtual Z gates to multiple qubits using only a few control lines from room temperature. We demonstrate coherent single-qubit gates at the 10 mK stage using an AQFP mixer, a core component of the AQFP QC-VZ, without observable degradation in coherence. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2603.27231 [quant-ph] (or arXiv:2603.27231v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2603.27231 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Naoki Takeuchi [view email] [v1] Sat, 28 Mar 2026 10:55:52 UTC (10,282 KB) Full-text links: Access Paper: View a PDF of the paper titled Ultralow-power coherent qubit control using AQFP logic at millikelvin temperatures, by Hiroto Mukai and 7 other authorsView PDF view license Current browse context: quant-ph new | recent | 2026-03 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?)