Japan has officially entered the quantum computing race with an ambitious announcement. The Institute for Molecular Science (IMS) has commissioned the Shunkai system — the country's first full-fledged quantum computer operating on neutral atoms. This is not just a technological demonstrator, but a real computing platform capable of solving problems that are inaccessible to classical machines.
At launch, Shunkai operates with approximately 50 qubits. However, the system's architecture is initially designed with a safety margin: developers are building in the possibility of scaling up to 500 qubits without a radical overhaul of the hardware. This approach is typical of mature quantum projects, where not only raw power matters, but also resilience to errors.
Strategic partnership and long-term goals
The key supplier of the quantum processor was the American company Infleqtion, known for its developments in atomic physics and quantum technologies. This collaboration underscores the global nature of the quantum industry: even national projects are increasingly relying on cross-border cooperation.
A more ambitious goal is to create a fault-tolerant system with 10,000 physical qubits and full error correction by March 2031. This is a fundamentally different level: for comparison, modern quantum machines, including the flagships of IBM and Google, are still far from such a scale with practical correction. If the Japanese manage to achieve what they have planned, the country will gain a serious advantage in the fields of materials modeling, cryptography, and optimization of complex systems.
It is important to note that neutral atoms are one of the most promising platforms for quantum computing. Unlike superconducting qubits, they have longer coherence times and are potentially easier to scale. The launch of Shunkai is not just a local event, but a signal that the technology is moving from laboratories into the industrial sphere.
My analysis: The quantum computing market is experiencing a turning point. Competition is shifting from the number of qubits to the quality of their control and stability. The Japanese project, with its focus on 10,000 qubits with error correction by 2031, is a realistic but extremely tight timeline. If IMS and Infleqtion maintain the pace, we will witness the emergence of the first truly commercially significant quantum system capable of breaking existing cryptographic standards. Investors and analysts should keep a close eye on this direction.