IBM pushes back multi-chip quantum link, adds 500-qubit Nighthawk variant
IBM used its Quantum Developer's Conference to update its quantum computing roadmap, saying it still aims to build error-corrected quantum computers by 2029. The company is expanding its next-generation Nighthawk processor line with a version exceeding 500 programmable qubits, while scaling back plans to link multiple Nighthawk chips together from nine down to two, keeping total planned qubit counts for next year unchanged. IBM also highlighted performance gains from hardware-based qubit resets introduced in the September Nighthawk release.