IBM connects first modular cryogenic systems to scale quantum computers toward 2029 fault tolerance

IBM connected and cooled two modular cryogenic systems, advancing its scale-up plan for fault-tolerant quantum computing.

Linked modules target hundreds of quantum chips in a shared environment, supporting IBM’s plan to deliver Quantum Starling in 2029.

Initial tests reached 4 Kelvin in under five days, then dropped below 15 millikelvin; the combined system measures more than 8 feet tall.

Each module provides up to 12 times more wiring space than widely used IBM quantum systems, enabling more chip-to-chip connections.

The roadmap targets at least 1,000 programmable qubits by 2027 via L-couplers, and Nighthawk processors are slated for installation later this year.