#Japan #Quantinuum #RIKEN #Wako #Reimei-Fugaku

RIKEN Expands Quantum Computing Potential with Quantinuum Upgrade

In recent advancements, Quantinuum, a prominent player in the quantum computing sector, announced its collaboration with RIKEN, Japan's leading national research institute. RIKEN has officially procured Quantinuum's latest H2 quantum computing system. This upgrade aims to enhance the performance and application scope of the hybrid computing platform known as Reimei-Fugaku, a system that stands at the frontier of modern computing technology.

The Reimei-Fugaku Hybrid Platform

Launched in early 2025, the Reimei-Fugaku hybrid compute platform combines Quantinuum's innovative Reimei quantum system with RIKEN's Fugaku, recognized as one of the world’s fastest supercomputers. This hybrid configuration allows for a potent combination of classical high-performance computing (HPC) and the unique capabilities of quantum computing. The flexibility and speed of this platform facilitate complex simulations and calculations that traditional systems cannot handle effectively.

The H2 System Upgrade

As of April 2026, Quantinuum has successfully delivered the H2 system to RIKEN’s facility located near Tokyo, where the assembly to replace the earlier model H1 is currently underway. The H2 quantum computer features 56 qubits and is designed specifically to conduct high-fidelity operations. This advancement is expected to significantly reduce solution times and accommodate larger workloads, which is crucial for high-stakes research tasks.

The integration of the H2 system into RIKEN’s operational framework is anticipated to unlock vast potential across various disciplines, particularly in pharmaceutical research and materials science. Researchers have already demonstrated the capability of the Reimei-Fugaku platform by simulating complex biomolecular reactions with an accuracy level previously unattainable with classical HPC alone. This has paved the way for potentially groundbreaking advances in drug discovery and material development.

Statements from Industry Leaders

In a recent statement, Dr. Mitsuhisa Sato, the Division Director at RIKEN Center for Computational Science, expressed optimism about the H2 upgrade. He noted that since its installation, the Reimei H1 system has yielded substantial results, proving the efficacy of its high fidelity and extensive qubit connectivity. He remarked, "The transition to the H2 system is something we have long anticipated, and we expect it to be instrumental in showcasing the advantages of quantum-HPC hybrid computing."

Quantinuum’s President and CEO, Dr. Rajeeb Hazra, echoed similar sentiments, emphasizing the strategic benefits of RIKEN's continued choice of Quantinuum systems for its ambitious research goals. He underscored, "This collaboration between Quantinuum and RIKEN not only validates our technology but also highlights the potential of our partnership to push the boundaries of what is possible in science and industry."

The Continuing Collaboration

This latest development underscores the ongoing partnership between Quantinuum and RIKEN, aimed at advancing quantum-HPC hybrid infrastructure in Japan. Quantinuum is committed to working alongside Japan’s research community, facilitating real-world applications, and contributing actively to the growth of the national quantum ecosystem.

About RIKEN

Founded in 1917, RIKEN serves as Japan’s leading national research and development agency. It is renowned for its comprehensive research capabilities across various scientific fields. Over its extensive history, RIKEN has expanded to encompass a network of world-class research institutes dedicated to high-quality scientific output.

About Quantinuum

Quantinuum is at the forefront of quantum computing, offering a robust full-stack platform tailored for deployment in practical environments. The company specializes in the design and implementation of quantum systems with exceptional accuracy standards, engaging actively with leaders across diverse sectors such as pharmaceuticals, material science, and beyond. With about 700 employees globally, including a significant number of PhD-holding scientists, Quantinuum is poised to continue its leadership in quantum technology innovation.

In summary, the upgrade to Quantinuum's H2 quantum computing system marks a significant milestone in the evolution of RIKEN’s research capabilities, enabling groundbreaking possibilities in various scientific domains.