Hybridization of pulse and continuous-wave based optical quantum computation

Quantum Physics arXiv:2512.00543 (quant-ph) [Submitted on 29 Nov 2025] Title:Hybridization of pulse and continuous-wave based optical quantum computation Authors:Tatsuki Sonoyama, Tomoki Sano, Takumi Suzuki, Kazuma Takahashi, Takefumi Nomura, Akito Kawasaki, Asuka Inoue, Takahiro Kashiwazaki, Takeshi Umeki, Masahiro Yabuno, Shigehito Miki, Hirotaka Terai, Kan Takase, Warit Asavanant, Mamoru Endo, Akira Furusawa View a PDF of the paper titled Hybridization of pulse and continuous-wave based optical quantum computation, by Tatsuki Sonoyama and 15 other authors View PDF HTML (experimental) Abstract:We propose a pulse and continuous wave (CW) hybrid architecture of continuous-variable measurement-based optical quantum computation utilizing the strengths of both pulsed and CW light. In this architecture, input and ancillary non-Gaussian quantum states necessary for fault-tolerance and universality of quantum computing are generated with pulsed light, whereas quantum processors including continuous-variable cluster states and homodyne measurement systems are operated with CW light. This architecture is expected to enable both generation of quantum states with shorter optical wavepackets and low-loss manipulation and measurement of these states, thus is compatible with ultrafast and low-loss quantum information processing. In this study, as a proof-of-principle, an ultrafast homodyne measurement using CW local oscillator was performed on single-photon states generated with pulsed light. The measured single-photon state's temporal width was around 70 ps and the value of the Wigner function at the origin was W(0,0) = -0.153 +/- 0.003, which is highly non-classical. This will be a core technology for realizing high-speed optical quantum information processing. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2512.00543 [quant-ph] (or arXiv:2512.00543v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2512.00543 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Tatsuki Sonoyama [view email] [v1] Sat, 29 Nov 2025 16:27:54 UTC (2,894 KB) Full-text links: Access Paper: View a PDF of the paper titled Hybridization of pulse and continuous-wave based optical quantum computation, by Tatsuki Sonoyama and 15 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2025-12 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?)