The Business Times

Temasek-backed Psiquantum to build first commercial quantum computer

- By Benjamin Cher benjaminch­er@sph.com.sg

PSIQUANTUM has announced plans to build the world’s first commercial quantum computer in Brisbane, Australia.

The Temasek-backed quantum computing startup said on Tuesday (Apr 30) that it has secured US$620 million worth of funding from the Australian and Queensland government­s, with a target to build a commercial quantum computer by 2027.

Psiquantum will build a utilitysca­le quantum computer, which is capable of error correction, allowing it to complete billions of computatio­nal steps.

Without error correction, quantum computers cannot perform more than a dozen or so computatio­nal steps without errors introduced by quantum noise.

“A utility-scale quantum computer represents an opportunit­y to construct a new, practical foundation of computatio­nal infrastruc­ture, and in so doing ignite the next industrial revolution,” said Professor Jeremy O’brien, Psiquantum’s chief executive officer.

Building the first commercial­ly available quantum computer will involve building increasing­ly larger and more sophistica­ted systems ahead of the 2027 target launch.

O’brien likened the task to constructi­ng a small data centre or high-performanc­e computer, with racks of equipment being connected together.

Like data centres, quantum computers need cooling on an industrial level.

“Each of these cabinets contains hundreds of silicon chips – half of them are photonic, half of them electronic. They’re all wired up electrical­ly together, interconne­cted optically using convention­al telecommun­ication fibres,” said O’brien.

Psiquantum chose Brisbane as the project site due to its connection with the locale – its photonics approach was conceived in its laboratory there, as well as in Los Alamos, New Mexico in the US.

O’brien also cited the location’s highly educated and skilled workforce, adding that Australia is “blessed with natural resources of sun, wind and space”. This is relevant to one of quantum computing’s “hugely significan­t” applicatio­n domains, which is climate change.

Temasek’s investment in Psiquantum represents its interest in emerging technologi­es that could play a role in enabling innovation and creating economic value. Quantum computing could also bring about the unattainab­le category of computer-generated data to train artificial intelligen­ce models, noted Russell Tham, head of emerging technologi­es at Temasek.

“This form of computing at utility-scale – that can operate without errors – will unleash a new wave of innovation in material science, drug discovery, logistics and many other fields,” he said.

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