Quantinuum upgrades Reimei to H2 for hybrid supercomputing in Japan
Quantinuum and RIKEN upgraded Reimei to a 56-qubit H2 and plan work on a fault-tolerant system and exploratory work with SoftBank on connecting quantum computers with AI data centers in Japan.
By RuntimeWire Staff · Published
Primary source: PR Newswire Business Technology
Why it matters
Japan is funding quantum-HPC infrastructure through NEDO and tying it to a $1 billion United States-Japan AI for Science partnership, so the RIKEN platform is a reference deployment other national programs will measure against. For Quantinuum, the deal tests whether hybrid quantum services can reach commercial customers through AI data centers in Japan, which is the path from research contracts toward repeatable revenue.

Quantinuum CEO Rajeeb Hazra is using Japan to test the next phase of Quantinuum's pitch: quantum computers earn their place when they sit inside the supercomputing centers where serious work already happens. The business Hazra runs was formed in 2021 from Honeywell Quantum Solutions and Cambridge Quantum Computing, founded by Ilyas Khan.…
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