A Cryogenic Hybrid Photonic/CMOS Controller Architecture for Scalable Superconducting Qubit Control
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Quantum Physics arXiv:2606.10114 (quant-ph) [Submitted on 8 Jun 2026] Title:A Cryogenic Hybrid Photonic/CMOS Controller Architecture for Scalable Superconducting Qubit Control Authors:Bowen Liu, Zhaoran Rena Huang View a PDF of the paper titled A Cryogenic Hybrid Photonic/CMOS Controller Architecture for Scalable Superconducting Qubit Control, by Bowen Liu and Zhaoran Rena Huang View PDF HTML (experimental) Abstract:Scaling superconducting quantum computers toward thousands of qubits remains a difficult control hardware problem. It requires hardware that reduces room-temperature to cryogenic wiring and cryogenic power while preserving in-fridge programmability for microwave pulse generation. This work develops a 4 K hybrid photonic/CMOS control architecture in which optical fibers distribute shared shaped pulse templates, while local cryogenic CMOS (Cryo-CMOS) circuits provide transmission control, amplitude programming, sample-and-hold envelope shaping, LO-tone and phase selection, and microwave upconversion, enabling both single-qubit and two-qubit gate generation within the same control path. Compared with fully Cryo-CMOS controllers, this architecture reduces per-channel active dissipation by moving high-speed sampled RF/IF waveform synthesis and waveform-memory access out of each cryogenic channel. Compared with purely photonic-link qubit-control approaches, it adds local 4 K programmability for pulse selection, amplitude scaling, timing updates, and LO-phase control, while remaining compatible with room-temperature real-time feedback and quantum error correction (QEC) workflows. We present architecture-level first-order models for 4 K power dissipation, waveform-memory scaling, and controller-induced fidelity limits, and cross-check the dominant fidelity terms using a three-level transmon simulation. The analysis shows that shared optical pulse template distribution with local 4 K envelope programming is a feasible path toward scalable superconducting qubit control. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2606.10114 [quant-ph] (or arXiv:2606.10114v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2606.10114 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Bowen Liu [view email] [v1] Mon, 8 Jun 2026 19:48:15 UTC (7,549 KB) Full-text links: Access Paper: View a PDF of the paper titled A Cryogenic Hybrid Photonic/CMOS Controller Architecture for Scalable Superconducting Qubit Control, by Bowen Liu and Zhaoran Rena HuangView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-06 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?) 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?)