- IBM connects two box-shaped cryogenic modules into a single environment and cooled them below 15 millikelvin, linked by a thermally shielded tunnel carrying quantum cables between cells
- The cooling technology is established dilution refrigeration; what is new is an enclosure that offers up to twelve times more wiring area and lets modules sit side by side with shorter interconnects in tow
- IBM plans to install Nighthawk chips later this year, with a roadmap targeting 1,000 programmable qubits by 2027 and establishing fault tolerance in 2029
IBM has joined two cryogenic modules into a single environment at its Poughkeepsie facility and cooled the combined system to below 15 millikelvin, bringing it as close to absolute zero as possible.