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Fujitsu, TU Delft, and QuTech have demonstrated a diamond-based quantum module using tin-vacancy centers that operates at 1.55 kelvin, potentially simplifying the cryogenic requirements for scaling quantum systems. By integrating spin qubits with on-chip photonics, this prototype addresses critical challenges in modular design and facilitates efficient quantum information exchange via optical links between separate processors. This development marks a significant early step toward scalable architectures that differ from current superconducting or trapped-ion approaches.
Fujitsu, Delft and QuTech build a diamond-based quantum module

Fujitsu, Delft & QuTech built a prototype integrating spin qubits in diamond with on-chip photonics, creating a single diamond-based quantum module.
Image: DELFT – TU Delft TNW Labs – FOTO GUUS SCHOONEWILLE · qutech.nl Fujitsu, TU Delft, and QuTech have built a prototype quantum module operating at 1.55 kelvin (−271.6 °C), a temperature that could simplify the complex cooling typically required for quantum computers. The system utilizes tin-vacancy (SnV) centers in diamond, offering an alternative to qubit technologies like superconducting circuits…
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