Reference Architecture of a Quantum-Centric Supercomputer

Fuente: arXiv
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Main Authors: Seelam, Seetharami, Chow, Jerry M., Córcoles, Antonio, Sheldon, Sarah, Mittal, Tushar, Kandala, Abhinav, Dague, Sean, Hincks, Ian, Horii, Hiroshi, Johnson, Blake, Le, Michael, Jamjoom, Hani, Gambetta, Jay M.
Format: Preprint
Published: 2026
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author Seelam, Seetharami
Chow, Jerry M.
Córcoles, Antonio
Sheldon, Sarah
Mittal, Tushar
Kandala, Abhinav
Dague, Sean
Hincks, Ian
Horii, Hiroshi
Johnson, Blake
Le, Michael
Jamjoom, Hani
Gambetta, Jay M.
author_facet Seelam, Seetharami
Chow, Jerry M.
Córcoles, Antonio
Sheldon, Sarah
Mittal, Tushar
Kandala, Abhinav
Dague, Sean
Hincks, Ian
Horii, Hiroshi
Johnson, Blake
Le, Michael
Jamjoom, Hani
Gambetta, Jay M.
contents Quantum computers have demonstrated utility in simulating quantum systems beyond brute-force classical approaches. As the community builds on these demonstrations to explore using quantum computing for applied research, algorithms and workflows have emerged that require leveraging both quantum computers and classical high-performance computing (HPC) systems to scale applications, especially in chemistry and materials, beyond what either system can simulate alone. Today, these disparate systems operate in isolation, forcing users to manually orchestrate workloads, coordinate job scheduling, and transfer data between systems -- a cumbersome process that hinders productivity and severely limits rapid algorithmic exploration. These challenges motivate the need for flexible and high-performance Quantum-Centric Supercomputing (QCSC) systems that integrate Quantum Processing Units (QPUs), Graphics Processing Units (GPUs), and Central Processing Units (CPUs) to accelerate discovery of such algorithms across applications. These systems will be co-designed across quantum and classical HPC infrastructure, middleware, and application layers to accelerate the adoption of quantum computing for solving critical computational problems. We envision QCSC evolution through three distinct phases: (1) quantum systems as specialized compute offload engines within existing HPC complexes; (2) heterogeneous quantum and classical HPC systems coupled through advanced middleware, enabling seamless execution of hybrid quantum-classical algorithms; and (3) fully co-designed heterogeneous quantum-HPC systems for hybrid computational workflows. This article presents a reference architecture and roadmap for these QCSC systems.
format Preprint
id arxiv_https___arxiv_org_abs_2603_10970
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Reference Architecture of a Quantum-Centric Supercomputer
Seelam, Seetharami
Chow, Jerry M.
Córcoles, Antonio
Sheldon, Sarah
Mittal, Tushar
Kandala, Abhinav
Dague, Sean
Hincks, Ian
Horii, Hiroshi
Johnson, Blake
Le, Michael
Jamjoom, Hani
Gambetta, Jay M.
Emerging Technologies
Hardware Architecture
Distributed, Parallel, and Cluster Computing
Systems and Control
Quantum computers have demonstrated utility in simulating quantum systems beyond brute-force classical approaches. As the community builds on these demonstrations to explore using quantum computing for applied research, algorithms and workflows have emerged that require leveraging both quantum computers and classical high-performance computing (HPC) systems to scale applications, especially in chemistry and materials, beyond what either system can simulate alone. Today, these disparate systems operate in isolation, forcing users to manually orchestrate workloads, coordinate job scheduling, and transfer data between systems -- a cumbersome process that hinders productivity and severely limits rapid algorithmic exploration. These challenges motivate the need for flexible and high-performance Quantum-Centric Supercomputing (QCSC) systems that integrate Quantum Processing Units (QPUs), Graphics Processing Units (GPUs), and Central Processing Units (CPUs) to accelerate discovery of such algorithms across applications. These systems will be co-designed across quantum and classical HPC infrastructure, middleware, and application layers to accelerate the adoption of quantum computing for solving critical computational problems. We envision QCSC evolution through three distinct phases: (1) quantum systems as specialized compute offload engines within existing HPC complexes; (2) heterogeneous quantum and classical HPC systems coupled through advanced middleware, enabling seamless execution of hybrid quantum-classical algorithms; and (3) fully co-designed heterogeneous quantum-HPC systems for hybrid computational workflows. This article presents a reference architecture and roadmap for these QCSC systems.
title Reference Architecture of a Quantum-Centric Supercomputer
topic Emerging Technologies
Hardware Architecture
Distributed, Parallel, and Cluster Computing
Systems and Control
url https://arxiv.org/abs/2603.10970