The MQT Compiler Collection: A Blueprint for a Future-Proof Quantum-Classical Compilation Framework

Quantum Physics [Submitted on 9 Apr 2026] The MQT Compiler Collection: A Blueprint for a Future-Proof Quantum-Classical Compilation Framework Lukas Burgholzer, Daniel Haag, Yannick Stade, Damian Rovara, Patrick Hopf, Robert Wille As the capabilities of quantum computing hardware continue to rise, algorithms that exploit them are becoming increasingly complex. These developments increase the need for sophisticated compilation frameworks that translate high-level algorithms into executable code. In the past, most solutions were built with a quantum-first approach and handled mostly pure quantum programs without classical elements such as structured control flow. However, developments in quantum algorithms, error correction, and optimization, as well as the integration into high-performance computing (HPC) environments, depend on such classical elements. As quantum-first approaches increasingly struggle to handle these concepts, classical-first approaches are becoming a promising alternative. In this work, we present the MQT Compiler Collection, a blueprint for a future-proof quantum-classical compilation framework built on the Multi-Level Intermediate Representation (MLIR). After years of experience with the quantum-first approach and its shortcomings, we propose a framework that embraces core MLIR concepts to support the full compilation pipeline from high-level algorithms to hardware-specific instructions. The proposed architecture is designed from the ground up to support complex optimizations beyond, e.g., simple gate cancellation. It is publicly available at this https URL. Comments: 7 pages, 3 figures, to be presented at Design, Automation & Test in Europe 2026 Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2604.08674 [quant-ph]   (or arXiv:2604.08674v1 [quant-ph] for this version)   https://doi.org/10.48550/arXiv.2604.08674 Focus to learn more Submission history From: Daniel Haag [view email] [v1] Thu, 9 Apr 2026 18:05:10 UTC (1,672 KB) Access Paper: view license Current browse context: quant-ph < prev   |   next > new | recent | 2026-04 References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar Export BibTeX Citation 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 Demos Related Papers About arXivLabs Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)