IBM activates Quantum System Two in Chicago on 120-qubit Nighthawk r2 processor

By Khal · · 1 min read

Editorial illustration: Gold quantum-computer cooling hardware hangs inside a dark blue enclosure illuminated in cyan, with a stylized Chicago skyline behind it.
AI-generated editorial illustration · AI-generated editorial illustration · Published Nov 6, 2026, 8:44 p.m. (1 hour ago)

In brief

  • IBM activated Quantum System Two in Chicago's Hyde Park on November 6, 2026, per Crypto Briefing.
  • IBM's 120-qubit Nighthawk r2 processor powers the system.
  • Nighthawk r2 offers roughly 30% greater circuit complexity than earlier Heron-class processors, IBM says.
  • University of Chicago hosts the machine until it moves to the Illinois Quantum and Microelectronics Park.
  • Quantum advantage by the end of 2026 is IBM's stated target.

What's inside the machine

The system runs on IBM's 120-qubit Nighthawk r2 processor, per Crypto Briefing's report. Nighthawk uses a square-lattice topology. IBM says that layout improves connectivity over its earlier designs.

The bigger number is the complexity gain. According to IBM figures cited by Crypto Briefing, the Nighthawk architecture delivers about 30% greater circuit complexity than the company's previous Heron-class processors (the chips this generation replaces). IBM says it's aiming for quantum advantage by the end of 2026.

That's a target. It isn't something IBM has achieved yet.

The Chicago switch-on also didn't arrive alone. Crypto Briefing reported that one day earlier, on November 5, 2026, IBM launched an error-correction platform developed with AMD and Oak Ridge National Laboratory.

A temporary address

The University of Chicago won't be the system's permanent home. IBM plans to move it to the Illinois Quantum and Microelectronics Park (IQMP), which is still under construction on the former U.S. Steel South Works site.

The Illinois deal behind it

The deployment traces back to a December 2024 partnership between IBM and the State of Illinois under Governor JB Pritzker. The centerpiece of that deal is the National Quantum Algorithm Center (NQAC), which is set to be established at the IQMP; the Chicago system is one component of that plan.

There's a jobs piece too. IBM's FutureNow Chicago delivery center, also planned for the IQMP, is expected to generate 750 full-time technology jobs, according to Crypto Briefing.

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