The RIKEN Center for Computational Science has officially integrated the QURI SDK Enterprise from Tokyo-based algorithm firm QunaSys into its national JHPC-quantum platform. This deployment marks a major shift in how Japanese researchers handle hybrid workloads. By connecting the Fugaku supercomputer with various quantum processors, the project aims to bridge the gap between classical high-performance computing and emerging quantum hardware. The initiative remains funded by the New Energy and Industrial Technology Development Organization under the Ministry of Economy, Trade and Industry.
Technical Architecture and Computational Power
The integration centers on creating a unified software layer for heterogeneous systems. The JHPC-quantum framework now manages connections between the Fugaku supercomputer, equipped with A64FX processors, and the ROQUO cluster. This cluster utilizes 540 NVIDIA GB200 GPUs to accelerate simulation tasks. RIKEN officials confirmed that the setup allows researchers to transition between on-premises superconducting hardware and cloud-hosted trapped-ion systems. The software stack manages job dispatch and parallel simulation across these diverse backends.
QunaSys provided the QURI SDK Enterprise to handle specific operational bottlenecks. The software includes native support for Quantum Selected Configuration Interaction and ADAPT-QSCI algorithm suites. These tools target electronic structure calculations relevant to materials science and quantum chemistry. The SDK allows scientists to run simulations using the Message Passing Interface on Fugaku nodes. It also ties into the cuQuantum accelerator backend for state-vector and tensor-network operations. This architecture ensures that researchers can target different quantum architectures without rewriting core code for each specific machine.
National Strategic Goals and Industry Impact
This deployment operates under the Project for Research and Development of Enhanced Infrastructures for Post 5G Information and Communications Systems. The work follows the June 2026 launch of the ROQUO GPU cluster. Access remains limited to specific academic and industrial groups currently participating in the JHPC-quantum Test User Program. By standardizing the interface layer, RIKEN seeks to lower the barrier for researchers who need to verify quantum algorithms against classical supercomputer benchmarks.
The broader significance lies in Japan’s Society 5.0 roadmap. Government officials have prioritized the creation of domestic infrastructure that keeps research capabilities within national boundaries while maintaining global competitiveness in advanced computing. The integration of QURI SDK suggests a move toward modular, scalable workflows that treat quantum processors as specialized accelerators rather than isolated research experiments. Observers should monitor how these industrial partners translate these test-bed simulations into practical materials science applications over the next fiscal cycle.