During its annual quantum computing developer conference, IBM announced major updates to its technical roadmap aimed at achieving error-correcting quantum machines before the end of the current decade. The updates include scaling up the next-generation processors known as Nighthawk by adding a version exceeding 520 programmable quantum bits, while revising the previous plan of linking multiple processors to be limited to connecting two systems instead of nine.
At the same time, the company highlights performance improvements achieved thanks to the introduction of hardware-based qubit reset operations in the latest generation of Nighthawk processors introduced last September. This technology relies on allocating additional physical quantum bits that are not used in core calculations, allowing for rapid energy removal and returning qubits to their original state, achieving an acceleration of about 19 times in some computational operations.
The 2027 Dual-Linking Plan
The updated Nighthawk processor plan for next year points to combining performance improvement techniques and the leap in the number of programmable qubits to reach 520 qubits per single chip. Instead of linking nine small chips as previously planned, the company plans to introduce a device containing about 1040 qubits by linking only two chips together, which reflects an evolution in inter-chip communication technologies inside cryogenic refrigerators.
What Changes Practically?
IBM officials confirm that the company has successfully demonstrated high capabilities in linking multiple processors within the same refrigerated environment with high efficiency, paving the way to reaching advanced error-correction systems. The company continues to develop two parallel paths combining internal technical development and providing public platforms for algorithm testing, ensuring continuous progress toward building powerful and practically usable commercial quantum computers.