IBM unveiled the industry's first published quantum-centric supercomputing reference architecture on March 12, 2026, providing a new blueprint for integrating quantum computing into modern supercomputing environments. The architecture shows how quantum processors (QPUs) can work alongside GPUs and CPUs—across on-premises systems, research centers, and the cloud—in order to tackle scientific challenges that no single computing approach can solve on its own.
It combines quantum hardware with powerful classical infrastructure, including CPU and GPU clusters, high-speed networking, and shared storage, to support computationally intensive workloads and algorithms research. Designed for today's workloads and built to evolve over time, the architecture brings quantum and classical systems together into a unified computing environment.
The new framework addresses critical integration challenges. Quantum computers and HPC resources today mostly exist in isolation, which forces users to manually orchestrate workloads, coordinate job scheduling, and transfer data between systems. This situation is what drove IBM researchers to develop a new framework that integrates the two types of computing and provides for shared resources that can eliminate the silo-ization.
Scientific breakthroughs are already demonstrating the architecture's potential. RIKEN and IBM scientists achieved one of the largest quantum simulations of iron-sulfur clusters, a fundamental molecule in biology and chemistry, through closed loop data exchange between a co-located IBM Quantum Heron processor and all 152,064 classical compute nodes of RIKEN's Fugaku supercomputer. Algorithmiq, Trinity College Dublin, and IBM collaborators published methods in Nature Physics to accurately simulate many-body quantum chaos systems, such as collections of atoms and electrons, using classical compute resources for noise mitigation.
"More than four decades ago, Richard Feynman envisioned computers that could simulate quantum physics," said Jay Gambetta, Director of IBM Research and IBM Fellow. "At IBM, we've spent years turning that vision into reality. Today's quantum processors are beginning to tackle the hardest parts of scientific problems—those governed by quantum mechanics in chemistry". As new quantum-centric algorithms emerge, IBM's global ecosystem of clients and partners will continually evolve this architecture to support sophisticated resources, networks and software capabilities.
