IBM has connected and jointly cooled two modular cryogenic complexes, creating a unified ultra-cold environment to scale fault-tolerant quantum systems.
The two modules are designed to connect hundreds of quantum chips within a more powerful infrastructure. According to IBM, cooling to 4 K took less than five days, after which the system reached a temperature below 15 mK.
The company claims that each vacuum chamber provides up to 12 times more space for wiring than the most common quantum systems. This is expected to increase the number of connections between chips within and between modules.
The architecture includes the use of “L-couplers” for direct connection of individual quantum chips. Later in 2026, IBM plans to install IBM Quantum Nighthawk processors in the modules for extended testing.
By 2027, the company aims to connect several processors into a system with at least 1,000 programmable qubits using L-couplers. By the launch of IBM Quantum Starling in 2029, IBM expects to house thousands of qubits in each module.
IBM introduced plans for IBM Quantum Starling in 2025 along with a new error correction code. The connection of the two cryogenic modules is described by the company as another step in this roadmap.
In July, IBM CEO Arvind Krishna stated that investments in quantum computing will begin to significantly impact the company’s revenue and profit by 2028 or 2029.
