Quantum Steel in Chicago: PsiQuantum Builds a 1M-Qubit Facility With Global Cryptography Implications
The old steel spine of Chicago’s South Works is being recast in a different element. Light. At the Illinois Quantum and Microelectronics Park, Palo Alto–based PsiQuantum is constructing a facility designed to house a quantum system targeting 1M qubits, a scale researchers have spent decades theorizing but rarely approaching in physical infrastructure. The site stands on the former U.S. Steel South Works footprint, a location that once symbolized industrial manufacturing power. Now the ambition is computational. Instead of blast furnaces, the architecture will support photonic quantum hardware designed to operate at industrial scale. For observers tracking bold signals in the global tech news cycle, the project represents a visible shift from laboratory experimentation to real infrastructure.
PsiQuantum operates under the leadership of CEO Jeremy O’Brien, a physicist who has spent years pushing a specific bet on photonics. The company’s approach uses particles of light moving through silicon chips, allowing quantum systems to be produced using semiconductor fabrication processes already proven across the global electronics supply chain. The idea is simple but consequential. If quantum machines can be built using existing manufacturing pipelines, the technology may scale far faster than competing architectures confined to laboratory conditions. Investors have taken notice. In September 2025, PsiQuantum raised $1B at a $7B valuation from investors including BlackRock, Temasek, Baillie Gifford, NVentures, Macquarie Capital, and Ribbit Capital. The company simultaneously announced collaboration with NVIDIA to help connect classical GPU infrastructure with quantum systems, a pairing that sits squarely at the intersection of AI and deep compute. Developments like this increasingly dominate forward-looking tech news because they blur the line between experimental science and deployable technology.
Construction progress began to surface publicly in March 2026, when PsiQuantum co-founder Pete Shadbolt shared images of the Chicago site showing 500 tons of structural steel erected in just 6 days. The facility is designed to support a system targeting 1M qubits, a scale that has drawn attention well beyond quantum research circles. Some researchers argue that machines approaching this magnitude could challenge cryptographic systems that currently secure blockchain networks such as Bitcoin. The discussion has moved from whiteboard speculation to cranes, steel frames, and active construction. In the current tech news landscape, physical infrastructure projects like this carry a different weight than theoretical breakthroughs.
The possibility of quantum-scale cryptographic disruption has triggered discussion across the digital asset ecosystem. PsiQuantum co-founder Terry Rudolph has publicly stated the company has no intention of using quantum systems to derive private keys from public keys. Outside the company, Blockstream CEO Adam Back has suggested that practical quantum threats to Bitcoin security remain likely 10 years away. Those contrasting perspectives reflect a broader industry tension. Quantum capability is advancing steadily, but the precise moment when it intersects with real-world cryptographic risk remains uncertain.
The Chicago facility also carries civic and strategic weight. Illinois Governor JB Pritzker, Chicago Mayor Brandon Johnson, and Cook County Board President Toni Preckwinkle joined CEO Jeremy O’Brien at the groundbreaking ceremony. Their presence signals the scale of the regional bet. The Illinois Quantum and Microelectronics Park aims to position Chicago as a physical hub for next-generation computing infrastructure, with PsiQuantum acting as the anchor tenant. Early systems developed at the site are expected to participate in DARPA’s Quantum Benchmarking Initiative, a program designed to measure real-world progress toward practical quantum computing.