Fujitsu advances quantum computing roadmap amid NEC's exit from hardware development

Fujitsu has announced the development of a prototype quantum computer utilizing a diamond spin method. This technology uses tin-vacancy (SnV) centers in diamonds as qubits, which are reported to be more stable and resistant to external noise than traditional nitrogen-vacancy centers. The prototype features high fidelity and scalability through optical connections, operating at approximately -271.6°C.

In collaboration with Delft University of Technology and QuTech, Fujitsu aims to develop a multi-module prototype by 2027. The company has established a roadmap to achieve 250 logical qubits by fiscal year 2030 and 1,000 logical qubits by fiscal year 2035.

Concurrently, reports indicate a significant shift in the Japanese quantum computing landscape. NEC, a pioneer that first realized a quantum bit in 1999, has reportedly withdrawn from quantum computer machine development as of March. This move has resulted in a migration of many researchers, including key leaders in quantum computing, from NEC to Fujitsu, which is expanding its research facilities to accelerate its pursuit of quantum supremacy.