IBM unveils new ‘Quantum Nighthawk’ 120-qubit processor and software stack — company on track for 2029 fault-tolerance milestone

IBM has detailed its most significant quantum computing advances to date, revealing new hardware and software designed to push the limits of what today’s superconducting qubits can do. The announcements, made during IBM’s Quantum Developer Conference on November 12, include a new 120-qubit chip, updates to the Qiskit software stack, and a testbed architecture for running quantum error correction in hardware. Together, the new tools represent a serious step forward on the path to fault-tolerant…