TOKYO, October 26, 2026 -- JIJ Inc. today announced that a joint proposal with Mitsubishi Electric Corporation, titled “Performance Evaluation of a Quantum-Classical Hybrid Linear Solver for Thermal-Fluid Analysis,” has been selected for the JHPC-quantum Test User Program.

Mitsubishi Electric will participate as the lead proposer, with JIJ as a joint proposer. Through the program, the two companies will evaluate the performance and technical challenges of applying quantum-classical hybrid computing to thermal-fluid analysis.

About the JHPC-quantum Test User Program

JHPC-quantum is a research and development project jointly advanced by RIKEN and SoftBank Corp. to develop system software that connects quantum computers (QC) with high-performance computing (HPC) systems and to establish and demonstrate an integrated quantum-HPC computing platform.

The Test User Program invites research and development proposals for quantum-HPC applications that make use of the platform under development. The program is intended to gather feedback on the platform, identify promising applications, and support progress toward practical use.

JHPC-quantum is being carried out as part of the NEDO-commissioned project “Research and Development of quantum-supercomputers hybrid platform for exploration of uncharted computable capabilities,” under NEDO’s “Research and Development Project of the Enhanced Infrastructures for Post-5G Information and Communication Systems,” supported by Ministry of Economy, Trade and Industry (METI).

Evaluating Quantum-Classical Hybrid Algorithms for Linear Systems in Thermal-Fluid Analysis

Thermal-fluid analysis is a fundamental technology used in the design and development of a wide range of products, including transportation equipment, electronic components, and air-conditioning systems. As products become more sophisticated and requirements for performance and safety continue to rise, there is growing demand for larger-scale and higher-accuracy simulations, making computational efficiency an increasingly important challenge.

Quantum computing is being explored as a new approach to solving such computational problems.

In this project, Mitsubishi Electric and JIJ will evaluate the effectiveness of quantum-classical hybrid algorithms for solving linear systems arising in thermal-fluid analysis.

By combining Mitsubishi Electric’s expertise in thermal-fluid analysis with JIJ’s quantum computing technologies, the two companies will conduct evaluations with future industrial applications in mind.

Comment from Tsuyoshi Yoshida, General Manager, Quantum Project Group, Information Technology R&D Center, Mitsubishi Electric Corporation

We are very glad to hear the acceptance of our proposal for the JHPC-quantum test user program and highly appreciate the JIJ's efforts on the collaborative proposal. Thermal fluid analysis is an important technology for analyzing the equipment and the phenomenon around. We will try to enhance the technical readiness level through the verification with the available computing resource toward future realization of significantly extending the practical problem scale by quantum computing.

Comment from Yu Yamashiro, CEO of JIJ

“We’re very pleased that our joint proposal with Mitsubishi Electric has been selected for the JHPC-quantum Test User Program.
For quantum computing to create real value, advancing the technology itself is only part of the challenge. We also need to understand where it can make a meaningful difference and how it can be applied to real-world problems.
We see great value in pursuing this work with Mitsubishi Electric, which brings deep expertise in thermal-fluid analysis, with future industrial applications in mind. Through this project, we hope to build practical knowledge that can help bring quantum computing closer to real-world use and expand its potential across a broader range of industrial challenges.”