Fujitsu said its prototype is the first working diamond-spin quantum computer to combine tin-vacancy centers with photonic integrated circuits, and it can already be accessed through the company’s hybrid quantum platform.
At -271.6°C, the system runs at a higher temperature than typical superconducting quantum computers at -273.13°C, while aiming to exploit diamond’s stability and optical links for modular scaling.
The prototype stems from research begun in 2020 with Delft University of Technology and QuTech, and uses SnV centers that Fujitsu says are less noise-sensitive than more common nitrogen-vacancy designs.
Fujitsu plans a multi-module prototype by 2027 and will also work on linking the diamond-spin approach with superconducting systems under a roadmap targeting 250 logical qubits by 2030 and 1,000 by 2035.