{"id":157627,"date":"2025-09-20T23:46:15","date_gmt":"2025-09-20T23:46:15","guid":{"rendered":"https:\/\/www.newsbeep.com\/au\/157627\/"},"modified":"2025-09-20T23:46:15","modified_gmt":"2025-09-20T23:46:15","slug":"psiquantum-plans-to-build-worlds-first-large-scale-fault-tolerant-million-qubit-quantum-computers","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/au\/157627\/","title":{"rendered":"PsiQuantum plans to build world\u2019s first large scale fault tolerant million qubit quantum computers"},"content":{"rendered":"

PsiQuantum to build utility scale systems in Brisbane and Chicago with new fundingCompany expands photonic chip production and develops Barium Titanate switches for quantum scalingCooling and networking systems designed for data center style racks to support million qubits<\/p>\n

PsiQuantum has announced that it has raised $1 billion of Series E funding to further its goal of building fault-tolerant quantum computers at the scale of one million qubits.<\/p>\n

The company plans to create sites in Brisbane and Chicago for large-scale prototypes and begin work on utility-scale systems.<\/p>\n

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Founded on the idea that commercially valuable quantum computing requires error correction, PsiQuantum<\/a> has focused its approach on photonic qubits.<\/p>\n

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Overcoming scaling challenges<\/p>\n

It believes that by combining photon-based quantum technology with the manufacturing capabilities of semiconductor fabs, it can overcome scaling challenges that continue to slow progress in the field.<\/p>\n

These include manufacturability, cooling systems capable of handling thousands of chips, and reliable networking between modules.<\/p>\n

\u201cOnly building the real thing – million-qubit-scale, fault-tolerant machines – will unlock the promise of quantum computing,\u201d said Jeremy O\u2019Brien, co-founder and chief executive officer.<\/p>\n

“We defined what it takes from day one, this is a grand engineering challenge, not a science experiment. We tackled the hardest problems first – at the architectural and chip level – and are now mass-manufacturing best-in-class quantum photonic chips at a leading US semiconductor fab. With this funding, we\u2019re ready to take the next decisive steps to deliver the full potential of quantum computing,\u201d he added.<\/p>\n

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\u201cNearly nine years after we started, we have pushed the technology to an unprecedented level of maturity and performance,\u201d Pete Shadbolt, co-founder and chief scientific officer, said.<\/p>\n

\u201cWe have the chips, we have the switches, we have a scalable cooling technology, we can do networking, we have found the sites, we have the commercial motive and the government support \u2013 we\u2019re ready to get on and build utility-scale systems.\u201d<\/p>\n

PsiQuantum has already built a high-volume manufacturing process for its integrated photonic chipsets, designed in-house and fabricated at GlobalFoundries\u2019 Fab 8 in New York.<\/p>\n

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It has also developed new electro-optic switches by including Barium Titanate in its chip production.<\/p>\n

These switches are considered critical for scaling optical quantum systems and could also be applied in AI supercomputers that require high-speed, low-power networking.<\/p>\n

At the same time, PsiQuantum is designing cooling and control systems that resemble data center racks rather than traditional cryostats.<\/p>\n

The company has already demonstrated networking between quantum cabinets using standard telecom fiber, which it says is a requirement for large-scale deployment.<\/p>\n

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