# Fujitsu develops diamond-spin quantum computer prototype

- Link: https://www.thailand-business-news.com/pr-news/fujitsu-develops-diamond-spin-quantum-computer-prototype
- Published: 2026-09-08T14:15:00+07:00
- Author: PR Newswire

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**New diamond-spin quantum computer prototype incorporating tin-vacancy (SnV) centers
into photonic integrated circuits marks significant step toward quantum computing
scalability**

KAWASAKI, Japan, Sept. 8, 2026 /PRNewswire/ — Fujitsu today announced that it has
developed the world’s first working prototype of a diamond-spin quantum computer
incorporating tin-vacancy (SnV) centers into photonic integrated circuits. The prototype
can be operated at -271.6°C, higher than the typical operating temperature of superconducting
quantum computers (-273.13°C) and Fujitsu has demonstrated in a test environment
that it can be utilized via the Fujitsu Hybrid Quantum Computing Platform without
any additional specialist knowledge. This development represents an important milestone
toward realizing a modular architecture, one of the most promising approaches for
scaling quantum computers, due to its high fidelity and efficient optical connectivity.

The prototype is based on the results of joint research started in 2020 by Fujitsu,
Delft University of Technology, and QuTech, a world-leading quantum technology research
institute and part of TU Delft.

**Comment from Vivek Mahajan, Corporate Executive Officer, Corporate Vice President,
CTO, in charge of System Platform, Fujitsu Limited**

"The diamond-spin approach we have applied in this prototype not only offers exceptional
scalability in its own right, but also has the potential to be integrated with superconducting
quantum computers to further extend their capabilities, enabling more complex and
large-scale computations.
Under our roadmap to achieve a 250 logical qubit system
by fiscal 2030 and a 1,000 logical qubit system by fiscal 2035, Fujitsu will continue
advancing practical quantum computing across a broad range of areas, from software
to hardware, while leveraging the key advantages of the diamond-spin approach, including
high fidelity and optical connectivity."

**Comment from Dr. Kees Eijkel, General Director, QuTech, Delft University of Technology**

"We are delighted to announce this prototype diamond spin quantum computer as a 
result of the collaborative research conducted since 2020 between Fujitsu, Delft
University of Technology, and QuTech. It is a major milestone in our strong collaboration.
Demonstrating the scalability expected of diamond spin quantum computing remains
a long and challenging journey. However, by further strengthening our collaboration
with Fujitsu, we are committed to tackling this ambitious and meaningful challenge
and leading the development of next-generation quantum technologies."

[**For full release click here**](https://global.fujitsu/en-global/pr/news/2026/09/08-01)

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