Quantum Corridor Deploys First Quantum Computer on North America's Only Interstate Quantum-Safe Commercial Network
Quantum Computing Inc. installed its Dirac-3 quantum optimization machine on the Quantum Corridor network connecting Chicago and Hammond, Indiana, marking the first time a quantum computer has been deployed on a QKD-secured commercial fiber network spanning U.S. state lines.
Overview
Quantum Computing Inc. (QCi) announced on March 30 that it has installed its Dirac-3 quantum optimization machine at the Digital Crossroad Data Center in Hammond, Indiana, making it the first quantum computer deployed on a quantum key distribution-secured commercial network spanning U.S. state lines. The machine sits on Quantum Corridor, an interstate fiber network connecting Chicago’s ORD 10 Data Center to Hammond that operates as North America’s first quantum-safe commercial communications link between two states.
The deployment brings together two distinct quantum technologies on a single commercial infrastructure: QKD-secured fiber for data protection and a quantum optimization machine for computation. Subscribers will be able to access the Dirac-3 system over a 10-gigabit connection secured by Toshiba’s quantum key distribution hardware, according to The Quantum Insider.
The Network
Quantum Corridor’s fiber backbone runs 21.8 kilometers from Chicago’s ORD 10 Data Center at 350 East Cermak Road to the Digital Crossroad Data Center at 100 Digital Crossroad Drive in Hammond, Indiana. The network offers 40 terabits per second of capacity with a round-trip latency of 0.274 milliseconds, according to QCi’s announcement.
The quantum-safe security layer was validated in a December 2025 demonstration by Quantum Corridor and Toshiba International Corporation. During that test, Toshiba’s ETSI-compliant multiplexed QKD systems generated encryption keys at an average rate of 1,500 kilobits per second — well above typical field performance — with fresh keys rotating every 90 seconds. The system maintained 100 percent line-rate throughput with zero packet loss across 48 continuous hours of encrypted traffic over Ciena Waveserver 5 800G coherent modules, achieving FIPS 140-3 Level 2 compliance, as reported by The Quantum Insider.
That demonstration marked the first cross-state QKD deployment on any commercial carrier network in the United States.
The Machine
QCi’s Dirac-3 is a photonic quantum optimization system designed to solve combinatorial problems in areas such as fraud detection, portfolio management, operations planning, and unmanned aerial systems risk management. Unlike gate-based quantum computers that require cryogenic cooling, the Dirac-3 operates at room temperature with low power consumption, which simplifies data center deployment, according to The Quantum Insider.
The installation at Digital Crossroad represents the first data center deployment of the Dirac-3 system. Access will be offered through Quantum Corridor’s subscription framework, targeting members of the Chicago Quantum Exchange — a research hub that includes the University of Chicago, Argonne National Laboratory, and Fermilab — as well as Midwest enterprises and government agencies.
“This collaboration enhances secure and scalable access to our quantum computing capabilities and marks a significant step forward in QCi’s commercial deployment strategy,” said Dr. Yuping Huang, QCi’s chief executive officer, in the company’s announcement.
Context
The deployment arrives as quantum-safe networking infrastructure is expanding rapidly in the United States and Europe. Romania recently activated a 1,500-kilometer QKD network spanning 36 quantum-secured links across six cities, representing over 20 percent of Europe’s terrestrial quantum communications infrastructure. Ireland deployed its first multi-node entanglement-based QKD network in March as part of the EuroQCI initiative. And in January 2026, Deutsche Telekom and Qunnect demonstrated quantum teleportation over 30 kilometers of live commercial fiber in Berlin with 90 percent average accuracy.
Quantum Corridor’s significance lies in combining QKD-secured transport with on-network quantum computation in a commercial setting. Dr. Mit Jha, Quantum Corridor’s chief executive officer, said the network “will now have the ability to solve previously intractable optimization problems” through the addition of the Dirac-3 system, according to the company’s announcement.
The network plans to expand access to Indiana universities and government partners, positioning the Chicago-Hammond corridor as a testbed for quantum-secured commercial services in the Midwest.