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End-to-End Fidelity Analysis of Quantum Circuit Optimization: From Gate-Level Transformations to Pulse-Level Control

Rylan Malarchick
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⚡ Quantum Brief
A January 2026 study evaluates quantum circuit fidelity across the full compilation stack, linking gate-level optimizations to pulse-level control using a modular C++ framework and Lindblad-based simulations. Gate cancellation emerged as the most impactful optimization, improving 68% of circuits and eliminating 14,024 gates in 371 simulated runs on IQM Garnet hardware parameters. Pulse duration showed the strongest negative correlation with fidelity (r = -0.74), accounting for 55% of fidelity variance, highlighting hardware constraints’ role in quantum performance. Hardware validation on IQM’s 20-qubit processor achieved a 70% gate reduction in QFT circuits with a 100% success rate across eight executions. The open-source framework enables reproducible benchmarking of quantum compilation pipelines, advancing standardized evaluation for near-term quantum devices.
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Quantum Physics arXiv:2601.20871 (quant-ph) [Submitted on 17 Jan 2026] Title:End-to-End Fidelity Analysis of Quantum Circuit Optimization: From Gate-Level Transformations to Pulse-Level Control Authors:Rylan Malarchick View a PDF of the paper titled End-to-End Fidelity Analysis of Quantum Circuit Optimization: From Gate-Level Transformations to Pulse-Level Control, by Rylan Malarchick View PDF HTML (experimental) Abstract:We present a comprehensive analysis of quantum circuit fidelity across the full compilation stack, from high-level gate optimization through pulse-level control. Using a modular integration framework connecting a C++ circuit optimizer with Lindblad-based pulse simulation, we systematically evaluate the fidelity impact of four optimization passes: gate cancellation, commutation, rotation merging, and identity elimination, on IQM Garnet hardware parameters. Our simulation campaign spanning 371 circuit runs reveals that gate cancellation provides the most significant improvement (68\% of circuits improved, 14,024 gates eliminated), while pulse duration exhibits the strongest negative correlation with process fidelity ($r = -0.74$, $R^2 = 0.55$). We validate these findings through hardware execution on the IQM Resonance Garnet 20-qubit processor, demonstrating 70\% gate reduction on QFT circuits with 100\% job success rate (8 executions). Our open-source framework enables reproducible benchmarking of quantum compilation pipelines. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2601.20871 [quant-ph] (or arXiv:2601.20871v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2601.20871 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Rylan Malarchick [view email] [v1] Sat, 17 Jan 2026 18:15:20 UTC (66 KB) Full-text links: Access Paper: View a PDF of the paper titled End-to-End Fidelity Analysis of Quantum Circuit Optimization: From Gate-Level Transformations to Pulse-Level Control, by Rylan MalarchickView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-01 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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