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Quantum Approximate Walk Algorithm

Ziqing Guo, Jan Balewski, Wenshuo Hu, Alex Khan, Ziwen Pan
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⚡ Quantum Brief
Researchers introduced a novel quantum algorithm that maps classical data to quantum states using trigonometric functions, enabling multivariate distribution exploitation while addressing limitations in current variational quantum gate learning methods. The team developed a shallow quantum circuit (SQC) with linear depth scaling, allowing efficient pattern learning through a classical data-traceable quantum oracle—bridging near-term hardware constraints with practical optimization needs. Experimental validation on IBM Pittsburgh hardware demonstrated polynomial-time solution verification, combining mid-circuit measurements with classical preprocessing to enhance interpretability without full state tomography. This hybrid approach improves QAOA output reliability by establishing a direct, inferable link between classical inputs and quantum outputs, avoiding the need for resource-intensive reconstruction methods. The framework offers a scalable pathway for industrial quantum-classical algorithms, addressing the gap between current quantum capabilities and real-world optimization challenges.
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Quantum Physics arXiv:2511.07676 (quant-ph) [Submitted on 10 Nov 2025] Title:Quantum Approximate Walk Algorithm Authors:Ziqing Guo, Jan Balewski, Wenshuo Hu, Alex Khan, Ziwen Pan View a PDF of the paper titled Quantum Approximate Walk Algorithm, by Ziqing Guo and 4 other authors View PDF HTML (experimental) Abstract:The encoding of classical to quantum data mapping through trigonometric functions within arithmetic-based quantum computation algorithms leads to the exploitation of multivariate distributions. The studied variational quantum gate learning mechanism, which relies on agnostic gradient optimization, does not offer algorithmic guarantees for the correlation of results beyond the measured bitstring outputs. Consequently, existing methodologies are inapplicable to this problem. In this study, we present a classical data-traceable quantum oracle characterized by a circuit depth that increases linearly with the number of qubits. This configuration facilitates the learning of approximate result patterns through a shallow quantum circuit (SQC) layout. Moreover, our approach demonstrates that the classical preprocessing of mid-quantum measurement data enhances the interpretability of quantum approximate optimization algorithm (QAOA) outputs without requiring full quantum state tomography. By establishing an inferable mapping between the classical input and quantum circuit outcomes, we obtained experimental results on the state-of-the-art IBM Pittsburgh hardware, which yielded polynomial-time verification of the solution quality. This hybrid framework bridges the gap between near-term quantum capabilities and practical optimization requirements, offering a pathway toward reliable quantum-classical algorithms for industrial applications. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2511.07676 [quant-ph] (or arXiv:2511.07676v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2511.07676 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Ziqing Guo [view email] [v1] Mon, 10 Nov 2025 22:43:12 UTC (202 KB) Full-text links: Access Paper: View a PDF of the paper titled Quantum Approximate Walk Algorithm, by Ziqing Guo and 4 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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