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Calibrating quantum gates up to 52 qubits in a superconducting processor
Researchers successfully benchmarked quantum gates up to 52 qubits using a character-average benchmarking protocol, achieving a 63.09% ± 0.23% fidelity for a 44-qubit parallel CZ gate while demonstrating that optimizing global gate fidelity, rather than individual gate fidelities, yields superior performance by accounting for inter-gate correlations.