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EQISA: Energy-efficient Quantum Instruction Set Architecture using Sparse Dictionary Learning

arXiv Quantum Physics
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⚡ Quantum Brief
Researchers introduced a novel quantum instruction set architecture (ISA) that reduces classical control energy by over 60% by compressing instruction streams without sacrificing computational fidelity. The method targets cryogenic bandwidth constraints, a key bottleneck in scalable quantum computing. The architecture, called EQISA, synthesizes quantum circuits using a fixed-depth Solovay-Kitaev basis and encodes instructions via sparse dictionary learning derived from Haar-random unitaries. This approach optimizes entropy with Huffman coding and lossless bzip2 compression. Benchmark tests across varying system sizes confirmed consistent 60%+ compression rates, directly cutting classical control overhead. The technique preserves algorithmic accuracy while lowering energy demands in quantum-classical interfaces. Beyond compression, EQISA uncovers higher-level composable abstractions in quantum circuits, offering insights into algorithmic complexity. This dual benefit enhances both efficiency and theoretical understanding of quantum operations. Published in March 2026, the work positions EQISA as a scalable solution for energy-efficient quantum control, addressing critical challenges in cryogenic system design and classical-quantum communication.
EQISA: Energy-efficient Quantum Instruction Set Architecture using Sparse Dictionary Learning

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Quantum Physics arXiv:2603.20646 (quant-ph) [Submitted on 21 Mar 2026] Title:EQISA: Energy-efficient Quantum Instruction Set Architecture using Sparse Dictionary Learning Authors:Sibasish Mishra, Aritra Sarkar, Sebastian Feld View a PDF of the paper titled EQISA: Energy-efficient Quantum Instruction Set Architecture using Sparse Dictionary Learning, by Sibasish Mishra and 2 other authors View PDF HTML (experimental) Abstract:The scalability of quantum computing in supporting sophisticated algorithms critically depends not only on qubit quality and error handling, but also on the efficiency of classical control, constrained by the cryogenic control bandwidth and energy budget. In this work, we address this challenge by investigating the algorithmic complexity of quantum circuits at the instruction set architecture (ISA) level. We introduce an energy-efficient quantum instruction set architecture (EQISA) that synthesizes quantum circuits in a discrete Solovay-Kitaev basis of fixed depth and encodes instruction streams using a sparse dictionary learned from decomposing a set of Haar-random unitaries, followed by entropy-optimal Huffman coding and an additional lossless bzip2 compression stage. This approach is evaluated on benchmark quantum circuits demonstrating over 60% compression of quantum instruction streams across system sizes, enabling proportional reductions in classical control energy and communication overhead without loss of computational fidelity. Beyond compression, EQISA facilitates the discovery of higher-level composable abstractions in quantum circuits and provides estimates of quantum algorithmic complexity. These findings position EQISA as an impactful direction for improving the energy efficiency and scalability of quantum control architectures. Comments: Subjects: Quantum Physics (quant-ph); Emerging Technologies (cs.ET); Systems and Control (eess.SY) Cite as: arXiv:2603.20646 [quant-ph] (or arXiv:2603.20646v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2603.20646 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Aritra Sarkar [view email] [v1] Sat, 21 Mar 2026 04:42:10 UTC (1,595 KB) Full-text links: Access Paper: View a PDF of the paper titled EQISA: Energy-efficient Quantum Instruction Set Architecture using Sparse Dictionary Learning, by Sibasish Mishra and 2 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-03 Change to browse by: cs cs.ET cs.SY eess eess.SY 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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superconducting-qubits
energy-climate
quantum-computing
quantum-algorithms
quantum-hardware

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Source: arXiv Quantum Physics