AirTrunk's quantum MoU is an option on campus heat

AirTrunk this week signed a memorandum of understanding with Emergence Quantum to explore cryogenic cooling across its data centers, a research partnership that arrived without a site, a megawatt figure or any financial terms to price. The two companies say the approach can "significantly improve" the speed and energy efficiency of today's silicon chips, and that it is foundational to the computing systems that follow, quantum among them.

AirTrunk's vice president for innovation and intelligence, Jose Castaneda, frames the tie-up as part of a continuing effort to rebuild the data center around performance, efficiency and sustainability. Emergence Quantum co-founder and CEO David Reilly makes the case from the physics: cold silicon has run faster and more efficiently for decades, but the difficulty and cost of refrigeration confined the technique to niche applications, and the scale of modern data centers combined with shrinking transistors has changed that arithmetic. His co-founder and CTO, Thomas Ohki, calls cryogenic data centers an inevitable reality and notes that every flavor of qubit needs cryogenics one way or another.

The stated scope is deliberately wide — cryogenic computing, thermal engineering, quantum technology, data center architecture and techno-economic models — and sits inside AirTrunk's ambition to build campuses that are quantum-ready, with cryogenic cooling embedded in the campus setup rather than bolted onto a single hall.

Strip away the qubits and the collaboration is aimed at the question every operator is now asking: on the companies' own framing, how much compute a hall can hold before cooling rather than power sets the limit. At campus scale the building itself becomes the constraint, and AirTrunk, founded in 2018, has seven sites in operation and development — Sydney and Melbourne in Australia, plus Singapore, Hong Kong, Johor in Malaysia, Tokyo and Osaka — each of which would need retrofitting if the technology proves out. Emergence Quantum, founded last year by University of Sydney academics, works on integrated cryogenic electronics and quantum computing. If cryo-cooling matures, the intellectual property is the smaller half of the value; the shell, the land and the existing campus sit on the other side of the table.

Most quantum computers still sit in labs, enterprise sites or facilities run by the quantum companies themselves, though a growing number are moving into colocation — the door AirTrunk is holding open. The nearer commercial prize is cooler-running conventional silicon, not qubits, which is why the partner list is one deep-tech startup and one landlord rather than a chipmaker.

Set that against AirTrunk's other news. In August, as this publication reported, E.Sun Bank led AirTrunk's $1.2 billion Tokyo financing — a deal with a lender, a site and a number. The Emergence Quantum MoU has a signature and a thesis.

A gigawatt announced without an offtaker is development risk presented as an asset; an MoU without a figure is an option whose strike price has not been set. Until one appears, the collaboration should be underwritten at roughly the cost of the paper. Watch for an address rather than a qubit count: cryogenic hardware standing on an AirTrunk campus would mean the option has been exercised, and a second memorandum with no site would mean it has not.