Linde Engineering, based in Pullach, Germany, has signed an agreement with PsiQuantum, headquartered in Palo Alto, California, to construct a cryogenic cooling plant for the world’s first utility-scale quantum computer in Brisbane, Queensland, Australia. The facility will be among the largest cryogenic plants designed specifically for quantum computing operations.

A Linde expert checking a coldbox, similar size to the application in Brisbane.

The plant will cool cryogenic cabinets housing PsiQuantum’s Omega chipset and related systems, maintaining temperatures in the 4 Kelvin range (-269°C, -452°F). This cooling is essential for quantum computers, which rely on qubits that operate in a superposition of states but are sensitive to environmental factors like heat. The project strengthens Australia’s quantum technology ecosystem, fostering collaboration across academia, industry, and supply chains.

Linde Engineering, with over 500 cryogenic plants installed globally, brings extensive expertise from serving industries such as semiconductors, medical imaging, and scientific research, including particle accelerators and fusion studies. John van der Velden, Senior Vice President of Global Sales & Technology at Linde Engineering, stated: “We are proud to help PsiQuantum realize their ambitious vision for quantum computing. This collaboration demonstrates how combined expertise can drive advancements in technology and innovation.”

PsiQuantum’s CEO and co-founder, Jeremy O’Brien, said: “Photons don’t feel heat the way matter-based qubits do. Our systems can run 100 times warmer – and we appreciate collaborating with a world-class firm like Linde Engineering to deliver industrial-scale systems with proven technology. This is a fundamental scaling advantage and a key reason we are able to move rapidly toward utility-scale quantum computing.”

The cryogenic plant will support tens of thousands of PsiQuantum’s Omega photonic chips, networked via standard optical fiber within cooled cabinets. Quantum computing, enabled by qubits’ ability to perform multiple computations simultaneously, promises advancements in fields like healthcare, energy, material design, and encryption. Effective cooling ensures qubits maintain their quantum properties, critical for reliable operation.

This collaboration highlights the potential of quantum technology to address complex global challenges. By combining Linde’s cryogenic expertise with PsiQuantum’s innovative chip design, the Brisbane project aims to establish a scalable model for quantum computing, enhancing Australia’s role in the global technology landscape.