IBM unveiled Condor in 2023 as the first quantum processor with 1,121 superconducting qubits, with a roadmap to over 4,000 qubits by 2025. Google released the Willow superconducting chip with 105 qubits in 2024, where adding qubits produced an exponential reduction in the error rate and crossed the fault-tolerance threshold for quantum error correction. IonQ’s…
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